21521008

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{58481}}^1$

素因数の和:58512

約数の個数: 20

約数和(自身を含む): 43510608

約数和(自身を除く): 21989600

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 58481, 116962, 233924, 467848, 935696, 1345063, 2690126, 5380252, 10760504, 21521008]

約数ペア:

[(1, 21521008), (2, 10760504), (4, 5380252), (8, 2690126), (16, 1345063), (23, 935696), (46, 467848), (92, 233924), (184, 116962), (368, 58481)]