19749848

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{40471}}^1$

素因数の和:40538

約数の個数: 16

約数和(自身を含む): 37638960

約数和(自身を除く): 17889112

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 40471, 80942, 161884, 323768, 2468731, 4937462, 9874924, 19749848]

約数ペア:

[(1, 19749848), (2, 9874924), (4, 4937462), (8, 2468731), (61, 323768), (122, 161884), (244, 80942), (488, 40471)]