20984418

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{557}}^1$

素因数の和:608

約数の個数: 96

約数和(自身を含む): 58496256

約数和(自身を除く): 37511838

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 23, 26, 39, 42, 46, 63, 69, 78, 91, 117, 126, 138, 161, 182, 207, 234, 273, 299, 322, 414, 483, 546, 557, 598, 819, 897, 966, 1114, 1449, 1638, 1671, 1794, 2093, 2691, 2898, 3342, 3899, 4186, 5013, 5382, 6279, 7241, 7798, 10026, 11697, 12558, 12811, 14482, 18837, 21723, 23394, 25622, 35091, 37674, 38433, 43446, 50687, 65169, 70182, 76866, 89677, 101374, 115299, 130338, 152061, 166543, 179354, 230598, 269031, 304122, 333086, 456183, 499629, 538062, 807093, 912366, 999258, 1165801, 1498887, 1614186, 2331602, 2997774, 3497403, 6994806, 10492209, 20984418]

約数ペア:

[(1, 20984418), (2, 10492209), (3, 6994806), (6, 3497403), (7, 2997774), (9, 2331602), (13, 1614186), (14, 1498887), (18, 1165801), (21, 999258), (23, 912366), (26, 807093), (39, 538062), (42, 499629), (46, 456183), (63, 333086), (69, 304122), (78, 269031), (91, 230598), (117, 179354), (126, 166543), (138, 152061), (161, 130338), (182, 115299), (207, 101374), (234, 89677), (273, 76866), (299, 70182), (322, 65169), (414, 50687), (483, 43446), (546, 38433), (557, 37674), (598, 35091), (819, 25622), (897, 23394), (966, 21723), (1114, 18837), (1449, 14482), (1638, 12811), (1671, 12558), (1794, 11697), (2093, 10026), (2691, 7798), (2898, 7241), (3342, 6279), (3899, 5382), (4186, 5013)]