21571368

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1$

素因数の和:136

約数の個数: 192

約数和(自身を含む): 72394560

約数和(自身を除く): 50823192

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 17, 21, 24, 26, 28, 34, 39, 42, 49, 51, 52, 56, 68, 78, 83, 84, 91, 98, 102, 104, 119, 136, 147, 156, 166, 168, 182, 196, 204, 221, 238, 249, 273, 294, 312, 332, 357, 364, 392, 408, 442, 476, 498, 546, 581, 588, 637, 663, 664, 714, 728, 833, 884, 952, 996, 1079, 1092, 1162, 1176, 1274, 1326, 1411, 1428, 1547, 1666, 1743, 1768, 1911, 1992, 2158, 2184, 2324, 2499, 2548, 2652, 2822, 2856, 3094, 3237, 3332, 3486, 3822, 4067, 4233, 4316, 4641, 4648, 4998, 5096, 5304, 5644, 6188, 6474, 6664, 6972, 7553, 7644, 8134, 8466, 8632, 9282, 9877, 9996, 10829, 11288, 12201, 12376, 12948, 13944, 15106, 15288, 16268, 16932, 18343, 18564, 19754, 19992, 21658, 22659, 24402, 25896, 29631, 30212, 32487, 32536, 33864, 36686, 37128, 39508, 43316, 45318, 48804, 52871, 55029, 59262, 60424, 64974, 69139, 73372, 79016, 86632, 90636, 97608, 105742, 110058, 118524, 128401, 129948, 138278, 146744, 158613, 181272, 207417, 211484, 220116, 237048, 256802, 259896, 276556, 317226, 385203, 414834, 422968, 440232, 513604, 553112, 634452, 770406, 829668, 898807, 1027208, 1268904, 1540812, 1659336, 1797614, 2696421, 3081624, 3595228, 5392842, 7190456, 10785684, 21571368]

約数ペア:

[(1, 21571368), (2, 10785684), (3, 7190456), (4, 5392842), (6, 3595228), (7, 3081624), (8, 2696421), (12, 1797614), (13, 1659336), (14, 1540812), (17, 1268904), (21, 1027208), (24, 898807), (26, 829668), (28, 770406), (34, 634452), (39, 553112), (42, 513604), (49, 440232), (51, 422968), (52, 414834), (56, 385203), (68, 317226), (78, 276556), (83, 259896), (84, 256802), (91, 237048), (98, 220116), (102, 211484), (104, 207417), (119, 181272), (136, 158613), (147, 146744), (156, 138278), (166, 129948), (168, 128401), (182, 118524), (196, 110058), (204, 105742), (221, 97608), (238, 90636), (249, 86632), (273, 79016), (294, 73372), (312, 69139), (332, 64974), (357, 60424), (364, 59262), (392, 55029), (408, 52871), (442, 48804), (476, 45318), (498, 43316), (546, 39508), (581, 37128), (588, 36686), (637, 33864), (663, 32536), (664, 32487), (714, 30212), (728, 29631), (833, 25896), (884, 24402), (952, 22659), (996, 21658), (1079, 19992), (1092, 19754), (1162, 18564), (1176, 18343), (1274, 16932), (1326, 16268), (1411, 15288), (1428, 15106), (1547, 13944), (1666, 12948), (1743, 12376), (1768, 12201), (1911, 11288), (1992, 10829), (2158, 9996), (2184, 9877), (2324, 9282), (2499, 8632), (2548, 8466), (2652, 8134), (2822, 7644), (2856, 7553), (3094, 6972), (3237, 6664), (3332, 6474), (3486, 6188), (3822, 5644), (4067, 5304), (4233, 5096), (4316, 4998), (4641, 4648)]