21013390

素因数分解:

$2^1\times 5^1\times {\mathrm{227}}^1\times {\mathrm{9257}}^1$

素因数の和:9491

約数の個数: 16

約数和(自身を含む): 37994832

約数和(自身を除く): 16981442

約数列:

[1, 2, 5, 10, 227, 454, 1135, 2270, 9257, 18514, 46285, 92570, 2101339, 4202678, 10506695, 21013390]

約数ペア:

[(1, 21013390), (2, 10506695), (5, 4202678), (10, 2101339), (227, 92570), (454, 46285), (1135, 18514), (2270, 9257)]