20481111

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{10487}}^1$

素因数の和:10531

約数の個数: 24

約数和(自身を含む): 34904064

約数和(自身を除く): 14422953

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 10487, 31461, 73409, 94383, 220227, 325097, 660681, 975291, 2275679, 2925873, 6827037, 20481111]

約数ペア:

[(1, 20481111), (3, 6827037), (7, 2925873), (9, 2275679), (21, 975291), (31, 660681), (63, 325097), (93, 220227), (217, 94383), (279, 73409), (651, 31461), (1953, 10487)]