21581384

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{2381}}^1$

素因数の和:2501

約数の個数: 32

約数和(自身を含む): 44591040

約数和(自身を除く): 23009656

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 103, 206, 412, 824, 1133, 2266, 2381, 4532, 4762, 9064, 9524, 19048, 26191, 52382, 104764, 209528, 245243, 490486, 980972, 1961944, 2697673, 5395346, 10790692, 21581384]

約数ペア:

[(1, 21581384), (2, 10790692), (4, 5395346), (8, 2697673), (11, 1961944), (22, 980972), (44, 490486), (88, 245243), (103, 209528), (206, 104764), (412, 52382), (824, 26191), (1133, 19048), (2266, 9524), (2381, 9064), (4532, 4762)]