18728185

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{421}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 27224064

約数和(自身を除く): 8495879

約数列:

[1, 5, 7, 31, 35, 41, 155, 205, 217, 287, 421, 1085, 1271, 1435, 2105, 2947, 6355, 8897, 13051, 14735, 17261, 44485, 65255, 86305, 91357, 120827, 456785, 535091, 604135, 2675455, 3745637, 18728185]

約数ペア:

[(1, 18728185), (5, 3745637), (7, 2675455), (31, 604135), (35, 535091), (41, 456785), (155, 120827), (205, 91357), (217, 86305), (287, 65255), (421, 44485), (1085, 17261), (1271, 14735), (1435, 13051), (2105, 8897), (2947, 6355)]