21000766974728

素因数分解:

$2^3\times {\mathrm{223}}^1\times {\mathrm{12703}}^1\times {\mathrm{926689}}^1$

素因数の和:939621

約数の個数: 32

約数和(自身を含む): 39556170393600

約数和(自身を除く): 18555403418872

約数列:

[1, 2, 4, 8, 223, 446, 892, 1784, 12703, 25406, 50812, 101624, 926689, 1853378, 2832769, 3706756, 5665538, 7413512, 11331076, 22662152, 206651647, 413303294, 826606588, 1653213176, 11771730367, 23543460734, 47086921468, 94173842936, 2625095871841, 5250191743682, 10500383487364, 21000766974728]

約数ペア:

[(1, 21000766974728), (2, 10500383487364), (4, 5250191743682), (8, 2625095871841), (223, 94173842936), (446, 47086921468), (892, 23543460734), (1784, 11771730367), (12703, 1653213176), (25406, 826606588), (50812, 413303294), (101624, 206651647), (926689, 22662152), (1853378, 11331076), (2832769, 7413512), (3706756, 5665538)]