21819252

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:122

約数の個数: 144

約数和(自身を含む): 66407040

約数和(自身を除く): 44587788

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 29, 39, 42, 52, 53, 58, 78, 84, 87, 91, 106, 116, 156, 159, 169, 174, 182, 203, 212, 273, 318, 338, 348, 364, 371, 377, 406, 507, 546, 609, 636, 676, 689, 742, 754, 812, 1014, 1092, 1113, 1131, 1183, 1218, 1378, 1484, 1508, 1537, 2028, 2067, 2226, 2262, 2366, 2436, 2639, 2756, 3074, 3549, 4134, 4452, 4524, 4611, 4732, 4823, 4901, 5278, 6148, 7098, 7917, 8268, 8957, 9222, 9646, 9802, 10556, 10759, 14196, 14469, 14703, 15834, 17914, 18444, 19292, 19604, 19981, 21518, 26871, 28938, 29406, 31668, 32277, 34307, 35828, 39962, 43036, 53742, 57876, 58812, 59943, 62699, 64554, 68614, 79924, 102921, 107484, 119886, 125398, 129108, 137228, 139867, 188097, 205842, 239772, 250796, 259753, 279734, 376194, 411684, 419601, 519506, 559468, 752388, 779259, 839202, 1039012, 1558518, 1678404, 1818271, 3117036, 3636542, 5454813, 7273084, 10909626, 21819252]

約数ペア:

[(1, 21819252), (2, 10909626), (3, 7273084), (4, 5454813), (6, 3636542), (7, 3117036), (12, 1818271), (13, 1678404), (14, 1558518), (21, 1039012), (26, 839202), (28, 779259), (29, 752388), (39, 559468), (42, 519506), (52, 419601), (53, 411684), (58, 376194), (78, 279734), (84, 259753), (87, 250796), (91, 239772), (106, 205842), (116, 188097), (156, 139867), (159, 137228), (169, 129108), (174, 125398), (182, 119886), (203, 107484), (212, 102921), (273, 79924), (318, 68614), (338, 64554), (348, 62699), (364, 59943), (371, 58812), (377, 57876), (406, 53742), (507, 43036), (546, 39962), (609, 35828), (636, 34307), (676, 32277), (689, 31668), (742, 29406), (754, 28938), (812, 26871), (1014, 21518), (1092, 19981), (1113, 19604), (1131, 19292), (1183, 18444), (1218, 17914), (1378, 15834), (1484, 14703), (1508, 14469), (1537, 14196), (2028, 10759), (2067, 10556), (2226, 9802), (2262, 9646), (2366, 9222), (2436, 8957), (2639, 8268), (2756, 7917), (3074, 7098), (3549, 6148), (4134, 5278), (4452, 4901), (4524, 4823), (4611, 4732)]