161330247

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{19421}}^1$

素因数の和:19511

約数の個数: 24

約数和(自身を含む): 254505888

約数和(自身を除く): 93175641

約数列:

[1, 3, 9, 13, 39, 71, 117, 213, 639, 923, 2769, 8307, 19421, 58263, 174789, 252473, 757419, 1378891, 2272257, 4136673, 12410019, 17925583, 53776749, 161330247]

約数ペア:

[(1, 161330247), (3, 53776749), (9, 17925583), (13, 12410019), (39, 4136673), (71, 2272257), (117, 1378891), (213, 757419), (639, 252473), (923, 174789), (2769, 58263), (8307, 19421)]