18020912

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12377}}^1$

素因数の和:12405

約数の個数: 40

約数和(自身を含む): 42976416

約数和(自身を除く): 24955504

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 12377, 24754, 49508, 86639, 99016, 160901, 173278, 198032, 321802, 346556, 643604, 693112, 1126307, 1287208, 1386224, 2252614, 2574416, 4505228, 9010456, 18020912]

約数ペア:

[(1, 18020912), (2, 9010456), (4, 4505228), (7, 2574416), (8, 2252614), (13, 1386224), (14, 1287208), (16, 1126307), (26, 693112), (28, 643604), (52, 346556), (56, 321802), (91, 198032), (104, 173278), (112, 160901), (182, 99016), (208, 86639), (364, 49508), (728, 24754), (1456, 12377)]