12840388

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{347}}^1$

素因数の和:420

約数の個数: 36

約数和(自身を含む): 25461072

約数和(自身を除く): 12620684

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 116, 319, 347, 638, 694, 841, 1276, 1388, 1682, 3364, 3817, 7634, 9251, 10063, 15268, 18502, 20126, 37004, 40252, 110693, 221386, 291827, 442772, 583654, 1167308, 3210097, 6420194, 12840388]

約数ペア:

[(1, 12840388), (2, 6420194), (4, 3210097), (11, 1167308), (22, 583654), (29, 442772), (44, 291827), (58, 221386), (116, 110693), (319, 40252), (347, 37004), (638, 20126), (694, 18502), (841, 15268), (1276, 10063), (1388, 9251), (1682, 7634), (3364, 3817)]