21224119

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{2081}}^1$

素因数の和:2166

約数の個数: 16

約数和(自身を含む): 25583616

約数和(自身を除く): 4359497

約数列:

[1, 7, 31, 47, 217, 329, 1457, 2081, 10199, 14567, 64511, 97807, 451577, 684649, 3032017, 21224119]

約数ペア:

[(1, 21224119), (7, 3032017), (31, 684649), (47, 451577), (217, 97807), (329, 64511), (1457, 14567), (2081, 10199)]