2181669808

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{1040873}}^1$

素因数の和:1041012

約数の個数: 20

約数和(自身を含む): 4259256408

約数和(自身を除く): 2077586600

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 1040873, 2081746, 4163492, 8326984, 16653968, 136354363, 272708726, 545417452, 1090834904, 2181669808]

約数ペア:

[(1, 2181669808), (2, 1090834904), (4, 545417452), (8, 272708726), (16, 136354363), (131, 16653968), (262, 8326984), (524, 4163492), (1048, 2081746), (2096, 1040873)]