18128355

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{4211}}^1$

素因数の和:4267

約数の個数: 32

約数和(自身を含む): 33965568

約数和(自身を除く): 15837213

約数列:

[1, 3, 5, 7, 15, 21, 35, 41, 105, 123, 205, 287, 615, 861, 1435, 4211, 4305, 12633, 21055, 29477, 63165, 88431, 147385, 172651, 442155, 517953, 863255, 1208557, 2589765, 3625671, 6042785, 18128355]

約数ペア:

[(1, 18128355), (3, 6042785), (5, 3625671), (7, 2589765), (15, 1208557), (21, 863255), (35, 517953), (41, 442155), (105, 172651), (123, 147385), (205, 88431), (287, 63165), (615, 29477), (861, 21055), (1435, 12633), (4211, 4305)]