21995116

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{38453}}^1$

素因数の和:38481

約数の個数: 24

約数和(自身を含む): 45221904

約数和(自身を除く): 23226788

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572, 38453, 76906, 153812, 422983, 499889, 845966, 999778, 1691932, 1999556, 5498779, 10997558, 21995116]

約数ペア:

[(1, 21995116), (2, 10997558), (4, 5498779), (11, 1999556), (13, 1691932), (22, 999778), (26, 845966), (44, 499889), (52, 422983), (143, 153812), (286, 76906), (572, 38453)]