21818068

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{173}}^1\times {\mathrm{769}}^1$

素因数の和:987

約数の個数: 24

約数和(自身を含む): 39390120

約数和(自身を除く): 17572052

約数列:

[1, 2, 4, 41, 82, 164, 173, 346, 692, 769, 1538, 3076, 7093, 14186, 28372, 31529, 63058, 126116, 133037, 266074, 532148, 5454517, 10909034, 21818068]

約数ペア:

[(1, 21818068), (2, 10909034), (4, 5454517), (41, 532148), (82, 266074), (164, 133037), (173, 126116), (346, 63058), (692, 31529), (769, 28372), (1538, 14186), (3076, 7093)]