21113955

素因数分解:

$3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{5653}}^1$

素因数の和:5747

約数の個数: 24

約数和(自身を含む): 37045008

約数和(自身を除く): 15931053

約数列:

[1, 3, 5, 9, 15, 45, 83, 249, 415, 747, 1245, 3735, 5653, 16959, 28265, 50877, 84795, 254385, 469199, 1407597, 2345995, 4222791, 7037985, 21113955]

約数ペア:

[(1, 21113955), (3, 7037985), (5, 4222791), (9, 2345995), (15, 1407597), (45, 469199), (83, 254385), (249, 84795), (415, 50877), (747, 28265), (1245, 16959), (3735, 5653)]