19999185

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1049}}^1$

素因数の和:1129

約数の個数: 32

約数和(自身を含む): 33868800

約数和(自身を除く): 13869615

約数列:

[1, 3, 5, 15, 31, 41, 93, 123, 155, 205, 465, 615, 1049, 1271, 3147, 3813, 5245, 6355, 15735, 19065, 32519, 43009, 97557, 129027, 162595, 215045, 487785, 645135, 1333279, 3999837, 6666395, 19999185]

約数ペア:

[(1, 19999185), (3, 6666395), (5, 3999837), (15, 1333279), (31, 645135), (41, 487785), (93, 215045), (123, 162595), (155, 129027), (205, 97557), (465, 43009), (615, 32519), (1049, 19065), (1271, 15735), (3147, 6355), (3813, 5245)]