20970856116

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1770589}}^1$

素因数の和:1770653

約数の個数: 72

約数和(自身を含む): 61871496960

約数和(自身を除く): 40900640844

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 47, 63, 84, 94, 126, 141, 188, 252, 282, 329, 423, 564, 658, 846, 987, 1316, 1692, 1974, 2961, 3948, 5922, 11844, 1770589, 3541178, 5311767, 7082356, 10623534, 12394123, 15935301, 21247068, 24788246, 31870602, 37182369, 49576492, 63741204, 74364738, 83217683, 111547107, 148729476, 166435366, 223094214, 249653049, 332870732, 446188428, 499306098, 582523781, 748959147, 998612196, 1165047562, 1497918294, 1747571343, 2330095124, 2995836588, 3495142686, 5242714029, 6990285372, 10485428058, 20970856116]

約数ペア:

[(1, 20970856116), (2, 10485428058), (3, 6990285372), (4, 5242714029), (6, 3495142686), (7, 2995836588), (9, 2330095124), (12, 1747571343), (14, 1497918294), (18, 1165047562), (21, 998612196), (28, 748959147), (36, 582523781), (42, 499306098), (47, 446188428), (63, 332870732), (84, 249653049), (94, 223094214), (126, 166435366), (141, 148729476), (188, 111547107), (252, 83217683), (282, 74364738), (329, 63741204), (423, 49576492), (564, 37182369), (658, 31870602), (846, 24788246), (987, 21247068), (1316, 15935301), (1692, 12394123), (1974, 10623534), (2961, 7082356), (3948, 5311767), (5922, 3541178), (11844, 1770589)]