660021

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1$

素因数の和:232

約数の個数: 16

約数和(自身を含む): 933888

約数和(自身を除く): 273867

約数列:

[1, 3, 31, 47, 93, 141, 151, 453, 1457, 4371, 4681, 7097, 14043, 21291, 220007, 660021]

約数ペア:

[(1, 660021), (3, 220007), (31, 21291), (47, 14043), (93, 7097), (141, 4681), (151, 4371), (453, 1457)]