21928090

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{881}}^1$

素因数の和:1038

約数の個数: 32

約数和(自身を含む): 41912640

約数和(自身を除く): 19984550

約数列:

[1, 2, 5, 10, 19, 38, 95, 131, 190, 262, 655, 881, 1310, 1762, 2489, 4405, 4978, 8810, 12445, 16739, 24890, 33478, 83695, 115411, 167390, 230822, 577055, 1154110, 2192809, 4385618, 10964045, 21928090]

約数ペア:

[(1, 21928090), (2, 10964045), (5, 4385618), (10, 2192809), (19, 1154110), (38, 577055), (95, 230822), (131, 167390), (190, 115411), (262, 83695), (655, 33478), (881, 24890), (1310, 16739), (1762, 12445), (2489, 8810), (4405, 4978)]