1240191

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{251}}^1$

素因数の和:324

約数の個数: 20

約数和(自身を含む): 1890504

約数和(自身を除く): 650313

約数列:

[1, 3, 9, 27, 61, 81, 183, 251, 549, 753, 1647, 2259, 4941, 6777, 15311, 20331, 45933, 137799, 413397, 1240191]

約数ペア:

[(1, 1240191), (3, 413397), (9, 137799), (27, 45933), (61, 20331), (81, 15311), (183, 6777), (251, 4941), (549, 2259), (753, 1647)]