21165990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{705533}}^1$

素因数の和:705543

約数の個数: 16

約数和(自身を含む): 50798448

約数和(自身を除く): 29632458

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 705533, 1411066, 2116599, 3527665, 4233198, 7055330, 10582995, 21165990]

約数ペア:

[(1, 21165990), (2, 10582995), (3, 7055330), (5, 4233198), (6, 3527665), (10, 2116599), (15, 1411066), (30, 705533)]