21205886

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{3593}}^1$

素因数の和:3835

約数の個数: 16

約数和(自身を含む): 34416144

約数和(自身を除く): 13210258

約数列:

[1, 2, 13, 26, 227, 454, 2951, 3593, 5902, 7186, 46709, 93418, 815611, 1631222, 10602943, 21205886]

約数ペア:

[(1, 21205886), (2, 10602943), (13, 1631222), (26, 815611), (227, 93418), (454, 46709), (2951, 7186), (3593, 5902)]