1620381

素因数分解:

$3^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{151}}^1$

素因数の和:241

約数の個数: 24

約数和(自身を含む): 2564544

約数和(自身を除く): 944163

約数列:

[1, 3, 7, 21, 49, 73, 147, 151, 219, 453, 511, 1057, 1533, 3171, 3577, 7399, 10731, 11023, 22197, 33069, 77161, 231483, 540127, 1620381]

約数ペア:

[(1, 1620381), (3, 540127), (7, 231483), (21, 77161), (49, 33069), (73, 22197), (147, 11023), (151, 10731), (219, 7399), (453, 3577), (511, 3171), (1057, 1533)]