21471256

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{24623}}^1$

素因数の和:24738

約数の個数: 16

約数和(自身を含む): 40629600

約数和(自身を除く): 19158344

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 24623, 49246, 98492, 196984, 2683907, 5367814, 10735628, 21471256]

約数ペア:

[(1, 21471256), (2, 10735628), (4, 5367814), (8, 2683907), (109, 196984), (218, 98492), (436, 49246), (872, 24623)]