21677968

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{8017}}^1$

素因数の和:8051

約数の個数: 30

約数和(自身を含む): 45486114

約数和(自身を除く): 23808146

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 1352, 2704, 8017, 16034, 32068, 64136, 104221, 128272, 208442, 416884, 833768, 1354873, 1667536, 2709746, 5419492, 10838984, 21677968]

約数ペア:

[(1, 21677968), (2, 10838984), (4, 5419492), (8, 2709746), (13, 1667536), (16, 1354873), (26, 833768), (52, 416884), (104, 208442), (169, 128272), (208, 104221), (338, 64136), (676, 32068), (1352, 16034), (2704, 8017)]