21726614

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 43330560

約数和(自身を除く): 21603946

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 61, 91, 103, 122, 133, 182, 206, 247, 266, 427, 494, 721, 793, 854, 1159, 1339, 1442, 1586, 1729, 1957, 2318, 2678, 3458, 3914, 5551, 6283, 8113, 9373, 11102, 12566, 13699, 15067, 16226, 18746, 25441, 27398, 30134, 43981, 50882, 81679, 87962, 105469, 119377, 163358, 178087, 210938, 238754, 356174, 571753, 835639, 1143506, 1551901, 1671278, 3103802, 10863307, 21726614]

約数ペア:

[(1, 21726614), (2, 10863307), (7, 3103802), (13, 1671278), (14, 1551901), (19, 1143506), (26, 835639), (38, 571753), (61, 356174), (91, 238754), (103, 210938), (122, 178087), (133, 163358), (182, 119377), (206, 105469), (247, 87962), (266, 81679), (427, 50882), (494, 43981), (721, 30134), (793, 27398), (854, 25441), (1159, 18746), (1339, 16226), (1442, 15067), (1586, 13699), (1729, 12566), (1957, 11102), (2318, 9373), (2678, 8113), (3458, 6283), (3914, 5551)]