21391472

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{58129}}^1$

素因数の和:58160

約数の個数: 20

約数和(自身を含む): 43248720

約数和(自身を除く): 21857248

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 58129, 116258, 232516, 465032, 930064, 1336967, 2673934, 5347868, 10695736, 21391472]

約数ペア:

[(1, 21391472), (2, 10695736), (4, 5347868), (8, 2673934), (16, 1336967), (23, 930064), (46, 465032), (92, 232516), (184, 116258), (368, 58129)]