66139521

素因数分解:

$3^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{7481}}^1$

素因数の和:7912

約数の個数: 16

約数和(自身を含む): 101036928

約数和(自身を除く): 34897407

約数列:

[1, 3, 7, 21, 421, 1263, 2947, 7481, 8841, 22443, 52367, 157101, 3149501, 9448503, 22046507, 66139521]

約数ペア:

[(1, 66139521), (3, 22046507), (7, 9448503), (21, 3149501), (421, 157101), (1263, 52367), (2947, 22443), (7481, 8841)]