21207441

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{1399}}^1$

素因数の和:1596

約数の個数: 16

約数和(自身を含む): 29388800

約数和(自身を除く): 8181359

約数列:

[1, 3, 31, 93, 163, 489, 1399, 4197, 5053, 15159, 43369, 130107, 228037, 684111, 7069147, 21207441]

約数ペア:

[(1, 21207441), (3, 7069147), (31, 684111), (93, 228037), (163, 130107), (489, 43369), (1399, 15159), (4197, 5053)]