20975506

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{557}}^1\times {\mathrm{991}}^1$

素因数の和:1569

約数の個数: 16

約数和(自身を含む): 33212160

約数和(自身を除く): 12236654

約数列:

[1, 2, 19, 38, 557, 991, 1114, 1982, 10583, 18829, 21166, 37658, 551987, 1103974, 10487753, 20975506]

約数ペア:

[(1, 20975506), (2, 10487753), (19, 1103974), (38, 551987), (557, 37658), (991, 21166), (1114, 18829), (1982, 10583)]