21290302

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{3571}}^1$

素因数の和:3855

約数の個数: 16

約数和(自身を含む): 34977024

約数和(自身を除く): 13686722

約数列:

[1, 2, 11, 22, 271, 542, 2981, 3571, 5962, 7142, 39281, 78562, 967741, 1935482, 10645151, 21290302]

約数ペア:

[(1, 21290302), (2, 10645151), (11, 1935482), (22, 967741), (271, 78562), (542, 39281), (2981, 7142), (3571, 5962)]