21341038

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{1097}}^1$

素因数の和:1307

約数の個数: 16

約数和(自身を含む): 32729184

約数和(自身を除く): 11388146

約数列:

[1, 2, 71, 137, 142, 274, 1097, 2194, 9727, 19454, 77887, 150289, 155774, 300578, 10670519, 21341038]

約数ペア:

[(1, 21341038), (2, 10670519), (71, 300578), (137, 155774), (142, 150289), (274, 77887), (1097, 19454), (2194, 9727)]