155991213

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{40591}}^1$

素因数の和:40665

約数の個数: 24

約数和(自身を含む): 261737216

約数和(自身を除く): 105746003

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 40591, 121773, 284137, 365319, 852411, 2476051, 2557233, 7428153, 17332357, 22284459, 51997071, 155991213]

約数ペア:

[(1, 155991213), (3, 51997071), (7, 22284459), (9, 17332357), (21, 7428153), (61, 2557233), (63, 2476051), (183, 852411), (427, 365319), (549, 284137), (1281, 121773), (3843, 40591)]