20213228

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31387}}^1$

素因数の和:31421

約数の個数: 24

約数和(自身を含む): 42185472

約数和(自身を除く): 21972244

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 31387, 62774, 125548, 219709, 439418, 721901, 878836, 1443802, 2887604, 5053307, 10106614, 20213228]

約数ペア:

[(1, 20213228), (2, 10106614), (4, 5053307), (7, 2887604), (14, 1443802), (23, 878836), (28, 721901), (46, 439418), (92, 219709), (161, 125548), (322, 62774), (644, 31387)]