21711753

素因数分解:

$3^3\times 7^2\times {\mathrm{16411}}^1$

素因数の和:16434

約数の個数: 24

約数和(自身を含む): 37419360

約数和(自身を除く): 15707607

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 16411, 49233, 114877, 147699, 344631, 443097, 804139, 1033893, 2412417, 3101679, 7237251, 21711753]

約数ペア:

[(1, 21711753), (3, 7237251), (7, 3101679), (9, 2412417), (21, 1033893), (27, 804139), (49, 443097), (63, 344631), (147, 147699), (189, 114877), (441, 49233), (1323, 16411)]