20921628

素因数分解:

$2^2\times 3^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:81

約数の個数: 192

約数和(自身を含む): 67737600

約数和(自身を除く): 46815972

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 17, 21, 23, 26, 28, 34, 39, 42, 46, 49, 51, 52, 68, 69, 78, 84, 91, 92, 98, 102, 119, 138, 147, 156, 161, 182, 196, 204, 221, 238, 273, 276, 294, 299, 322, 343, 357, 364, 391, 442, 476, 483, 546, 588, 598, 637, 644, 663, 686, 714, 782, 833, 884, 897, 966, 1029, 1092, 1127, 1173, 1196, 1274, 1326, 1372, 1428, 1547, 1564, 1666, 1794, 1911, 1932, 2058, 2093, 2254, 2346, 2499, 2548, 2652, 2737, 3094, 3332, 3381, 3588, 3822, 4116, 4186, 4459, 4508, 4641, 4692, 4998, 5083, 5474, 5831, 6188, 6279, 6762, 7644, 7889, 8211, 8372, 8918, 9282, 9996, 10166, 10829, 10948, 11662, 12558, 13377, 13524, 14651, 15249, 15778, 16422, 17493, 17836, 18564, 19159, 20332, 21658, 23324, 23667, 25116, 26754, 29302, 30498, 31556, 32487, 32844, 34986, 35581, 38318, 43316, 43953, 47334, 53508, 57477, 58604, 60996, 64974, 69972, 71162, 75803, 76636, 87906, 94668, 102557, 106743, 114954, 129948, 134113, 142324, 151606, 175812, 205114, 213486, 227409, 229908, 249067, 268226, 303212, 307671, 402339, 410228, 426972, 454818, 498134, 536452, 615342, 747201, 804678, 909636, 996268, 1230684, 1494402, 1609356, 1743469, 2988804, 3486938, 5230407, 6973876, 10460814, 20921628]

約数ペア:

[(1, 20921628), (2, 10460814), (3, 6973876), (4, 5230407), (6, 3486938), (7, 2988804), (12, 1743469), (13, 1609356), (14, 1494402), (17, 1230684), (21, 996268), (23, 909636), (26, 804678), (28, 747201), (34, 615342), (39, 536452), (42, 498134), (46, 454818), (49, 426972), (51, 410228), (52, 402339), (68, 307671), (69, 303212), (78, 268226), (84, 249067), (91, 229908), (92, 227409), (98, 213486), (102, 205114), (119, 175812), (138, 151606), (147, 142324), (156, 134113), (161, 129948), (182, 114954), (196, 106743), (204, 102557), (221, 94668), (238, 87906), (273, 76636), (276, 75803), (294, 71162), (299, 69972), (322, 64974), (343, 60996), (357, 58604), (364, 57477), (391, 53508), (442, 47334), (476, 43953), (483, 43316), (546, 38318), (588, 35581), (598, 34986), (637, 32844), (644, 32487), (663, 31556), (686, 30498), (714, 29302), (782, 26754), (833, 25116), (884, 23667), (897, 23324), (966, 21658), (1029, 20332), (1092, 19159), (1127, 18564), (1173, 17836), (1196, 17493), (1274, 16422), (1326, 15778), (1372, 15249), (1428, 14651), (1547, 13524), (1564, 13377), (1666, 12558), (1794, 11662), (1911, 10948), (1932, 10829), (2058, 10166), (2093, 9996), (2254, 9282), (2346, 8918), (2499, 8372), (2548, 8211), (2652, 7889), (2737, 7644), (3094, 6762), (3332, 6279), (3381, 6188), (3588, 5831), (3822, 5474), (4116, 5083), (4186, 4998), (4459, 4692), (4508, 4641)]