21053039

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{719}}^1$

素因数の和:862

約数の個数: 16

約数和(自身を含む): 24883200

約数和(自身を除く): 3830161

約数列:

[1, 7, 47, 89, 329, 623, 719, 4183, 5033, 29281, 33793, 63991, 236551, 447937, 3007577, 21053039]

約数ペア:

[(1, 21053039), (7, 3007577), (47, 447937), (89, 236551), (329, 63991), (623, 33793), (719, 29281), (4183, 5033)]