18891550444

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{70667}}^1$

素因数の和:70834

約数の個数: 48

約数和(自身を含む): 36649555488

約数和(自身を除く): 17758005044

約数列:

[1, 2, 4, 13, 26, 52, 53, 97, 106, 194, 212, 388, 689, 1261, 1378, 2522, 2756, 5044, 5141, 10282, 20564, 66833, 70667, 133666, 141334, 267332, 282668, 918671, 1837342, 3674684, 3745351, 6854699, 7490702, 13709398, 14981404, 27418796, 48689563, 89111087, 97379126, 178222174, 194758252, 356444348, 363299047, 726598094, 1453196188, 4722887611, 9445775222, 18891550444]

約数ペア:

[(1, 18891550444), (2, 9445775222), (4, 4722887611), (13, 1453196188), (26, 726598094), (52, 363299047), (53, 356444348), (97, 194758252), (106, 178222174), (194, 97379126), (212, 89111087), (388, 48689563), (689, 27418796), (1261, 14981404), (1378, 13709398), (2522, 7490702), (2756, 6854699), (5044, 3745351), (5141, 3674684), (10282, 1837342), (20564, 918671), (66833, 282668), (70667, 267332), (133666, 141334)]