20156355

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{14449}}^1$

素因数の和:14491

約数の個数: 24

約数和(自身を含む): 36067200

約数和(自身を除く): 15910845

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 14449, 43347, 72245, 130041, 216735, 447919, 650205, 1343757, 2239595, 4031271, 6718785, 20156355]

約数ペア:

[(1, 20156355), (3, 6718785), (5, 4031271), (9, 2239595), (15, 1343757), (31, 650205), (45, 447919), (93, 216735), (155, 130041), (279, 72245), (465, 43347), (1395, 14449)]