21707080

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{18713}}^1$

素因数の和:18753

約数の個数: 32

約数和(自身を含む): 50527800

約数和(自身を除く): 28820720

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 18713, 37426, 74852, 93565, 149704, 187130, 374260, 542677, 748520, 1085354, 2170708, 2713385, 4341416, 5426770, 10853540, 21707080]

約数ペア:

[(1, 21707080), (2, 10853540), (4, 5426770), (5, 4341416), (8, 2713385), (10, 2170708), (20, 1085354), (29, 748520), (40, 542677), (58, 374260), (116, 187130), (145, 149704), (232, 93565), (290, 74852), (580, 37426), (1160, 18713)]