19959610

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{431}}^1$

素因数の和:870

約数の個数: 32

約数和(自身を含む): 39377664

約数和(自身を除く): 19418054

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 421, 431, 842, 862, 2105, 2155, 4210, 4310, 4631, 4741, 9262, 9482, 23155, 23705, 46310, 47410, 181451, 362902, 907255, 1814510, 1995961, 3991922, 9979805, 19959610]

約数ペア:

[(1, 19959610), (2, 9979805), (5, 3991922), (10, 1995961), (11, 1814510), (22, 907255), (55, 362902), (110, 181451), (421, 47410), (431, 46310), (842, 23705), (862, 23155), (2105, 9482), (2155, 9262), (4210, 4741), (4310, 4631)]