8661989

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{223}}^1$

素因数の和:440

約数の個数: 16

約数和(自身を含む): 10321920

約数和(自身を除く): 1659931

約数列:

[1, 7, 31, 179, 217, 223, 1253, 1561, 5549, 6913, 38843, 39917, 48391, 279419, 1237427, 8661989]

約数ペア:

[(1, 8661989), (7, 1237427), (31, 279419), (179, 48391), (217, 39917), (223, 38843), (1253, 6913), (1561, 5549)]