71279271

素因数分解:

$3^4\times 7^2\times {\mathrm{17959}}^1$

素因数の和:17985

約数の個数: 30

約数和(自身を含む): 123870120

約数和(自身を除く): 52590849

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 17959, 53877, 125713, 161631, 377139, 484893, 879991, 1131417, 1454679, 2639973, 3394251, 7919919, 10182753, 23759757, 71279271]

約数ペア:

[(1, 71279271), (3, 23759757), (7, 10182753), (9, 7919919), (21, 3394251), (27, 2639973), (49, 1454679), (63, 1131417), (81, 879991), (147, 484893), (189, 377139), (441, 161631), (567, 125713), (1323, 53877), (3969, 17959)]