18774834477

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1229}}^1\times {\mathrm{38287}}^1$

素因数の和:39545

約数の個数: 32

約数和(自身を含む): 30140313600

約数和(自身を除く): 11365479123

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 1229, 3687, 8603, 23351, 25809, 38287, 70053, 114861, 163457, 268009, 490371, 727453, 804027, 2182359, 5092171, 15276513, 47054723, 141164169, 329383061, 894039737, 988149183, 2682119211, 6258278159, 18774834477]

約数ペア:

[(1, 18774834477), (3, 6258278159), (7, 2682119211), (19, 988149183), (21, 894039737), (57, 329383061), (133, 141164169), (399, 47054723), (1229, 15276513), (3687, 5092171), (8603, 2182359), (23351, 804027), (25809, 727453), (38287, 490371), (70053, 268009), (114861, 163457)]