21884756

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{263}}^1\times {\mathrm{293}}^1$

素因数の和:631

約数の個数: 24

約数和(自身を含む): 39118464

約数和(自身を除く): 17233708

約数列:

[1, 2, 4, 71, 142, 263, 284, 293, 526, 586, 1052, 1172, 18673, 20803, 37346, 41606, 74692, 77059, 83212, 154118, 308236, 5471189, 10942378, 21884756]

約数ペア:

[(1, 21884756), (2, 10942378), (4, 5471189), (71, 308236), (142, 154118), (263, 83212), (284, 77059), (293, 74692), (526, 41606), (586, 37346), (1052, 20803), (1172, 18673)]