21347990

素因数分解:

$2^1\times 5^1\times {\mathrm{709}}^1\times {\mathrm{3011}}^1$

素因数の和:3727

約数の個数: 16

約数和(自身を含む): 38493360

約数和(自身を除く): 17145370

約数列:

[1, 2, 5, 10, 709, 1418, 3011, 3545, 6022, 7090, 15055, 30110, 2134799, 4269598, 10673995, 21347990]

約数ペア:

[(1, 21347990), (2, 10673995), (5, 4269598), (10, 2134799), (709, 30110), (1418, 15055), (3011, 7090), (3545, 6022)]