30391389

素因数分解:

$3^3\times 7^1\times {\mathrm{401}}^2$

素因数の和:818

約数の個数: 24

約数和(自身を含む): 51584960

約数和(自身を除く): 21193571

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 401, 1203, 2807, 3609, 8421, 10827, 25263, 75789, 160801, 482403, 1125607, 1447209, 3376821, 4341627, 10130463, 30391389]

約数ペア:

[(1, 30391389), (3, 10130463), (7, 4341627), (9, 3376821), (21, 1447209), (27, 1125607), (63, 482403), (189, 160801), (401, 75789), (1203, 25263), (2807, 10827), (3609, 8421)]