20955686

素因数分解:

$2^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1\times {\mathrm{991}}^1$

素因数の和:1199

約数の個数: 16

約数和(自身を含む): 32081280

約数和(自身を除く): 11125594

約数列:

[1, 2, 97, 109, 194, 218, 991, 1982, 10573, 21146, 96127, 108019, 192254, 216038, 10477843, 20955686]

約数ペア:

[(1, 20955686), (2, 10477843), (97, 216038), (109, 192254), (194, 108019), (218, 96127), (991, 21146), (1982, 10573)]