21031766965

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{647}}^1\times {\mathrm{9689}}^1$

素因数の和:10413

約数の個数: 32

約数和(自身を含む): 28029991680

約数和(自身を除く): 6998224715

約数列:

[1, 5, 11, 55, 61, 305, 647, 671, 3235, 3355, 7117, 9689, 35585, 39467, 48445, 106579, 197335, 434137, 532895, 591029, 2170685, 2955145, 6268783, 6501319, 31343915, 32506595, 68956613, 344783065, 382395763, 1911978815, 4206353393, 21031766965]

約数ペア:

[(1, 21031766965), (5, 4206353393), (11, 1911978815), (55, 382395763), (61, 344783065), (305, 68956613), (647, 32506595), (671, 31343915), (3235, 6501319), (3355, 6268783), (7117, 2955145), (9689, 2170685), (35585, 591029), (39467, 532895), (48445, 434137), (106579, 197335)]