21685980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{361433}}^1$

素因数の和:361445

約数の個数: 24

約数和(自身を含む): 60720912

約数和(自身を除く): 39034932

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 361433, 722866, 1084299, 1445732, 1807165, 2168598, 3614330, 4337196, 5421495, 7228660, 10842990, 21685980]

約数ペア:

[(1, 21685980), (2, 10842990), (3, 7228660), (4, 5421495), (5, 4337196), (6, 3614330), (10, 2168598), (12, 1807165), (15, 1445732), (20, 1084299), (30, 722866), (60, 361433)]