21405416

素因数分解:

$2^3\times {\mathrm{463}}^1\times {\mathrm{5779}}^1$

素因数の和:6248

約数の個数: 16

約数和(自身を含む): 40228800

約数和(自身を除く): 18823384

約数列:

[1, 2, 4, 8, 463, 926, 1852, 3704, 5779, 11558, 23116, 46232, 2675677, 5351354, 10702708, 21405416]

約数ペア:

[(1, 21405416), (2, 10702708), (4, 5351354), (8, 2675677), (463, 46232), (926, 23116), (1852, 11558), (3704, 5779)]