18340244

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{977}}^1$

素因数の和:1032

約数の個数: 36

約数和(自身を含む): 36516564

約数和(自身を除く): 18176320

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 361, 494, 722, 977, 988, 1444, 1954, 3908, 4693, 9386, 12701, 18563, 18772, 25402, 37126, 50804, 74252, 241319, 352697, 482638, 705394, 965276, 1410788, 4585061, 9170122, 18340244]

約数ペア:

[(1, 18340244), (2, 9170122), (4, 4585061), (13, 1410788), (19, 965276), (26, 705394), (38, 482638), (52, 352697), (76, 241319), (247, 74252), (361, 50804), (494, 37126), (722, 25402), (977, 18772), (988, 18563), (1444, 12701), (1954, 9386), (3908, 4693)]