81267221

素因数分解:

$7^1\times {\mathrm{79}}^1\times {\mathrm{223}}^1\times {\mathrm{659}}^1$

素因数の和:968

約数の個数: 16

約数和(自身を含む): 94617600

約数和(自身を除く): 13350379

約数列:

[1, 7, 79, 223, 553, 659, 1561, 4613, 17617, 52061, 123319, 146957, 364427, 1028699, 11609603, 81267221]

約数ペア:

[(1, 81267221), (7, 11609603), (79, 1028699), (223, 364427), (553, 146957), (659, 123319), (1561, 52061), (4613, 17617)]