19981246

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1\times {\mathrm{631}}^1$

素因数の和:927

約数の個数: 16

約数和(自身を含む): 30578688

約数和(自身を除く): 10597442

約数列:

[1, 2, 71, 142, 223, 446, 631, 1262, 15833, 31666, 44801, 89602, 140713, 281426, 9990623, 19981246]

約数ペア:

[(1, 19981246), (2, 9990623), (71, 281426), (142, 140713), (223, 89602), (446, 44801), (631, 31666), (1262, 15833)]