21316730

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{29201}}^1$

素因数の和:29281

約数の個数: 16

約数和(自身を含む): 38897064

約数和(自身を除く): 17580334

約数列:

[1, 2, 5, 10, 73, 146, 365, 730, 29201, 58402, 146005, 292010, 2131673, 4263346, 10658365, 21316730]

約数ペア:

[(1, 21316730), (2, 10658365), (5, 4263346), (10, 2131673), (73, 292010), (146, 146005), (365, 58402), (730, 29201)]