12639978

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2843}}^1$

素因数の和:2883

約数の個数: 48

約数和(自身を含む): 31056480

約数和(自身を除く): 18416502

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 38, 39, 57, 78, 114, 117, 171, 234, 247, 342, 494, 741, 1482, 2223, 2843, 4446, 5686, 8529, 17058, 25587, 36959, 51174, 54017, 73918, 108034, 110877, 162051, 221754, 324102, 332631, 486153, 665262, 702221, 972306, 1404442, 2106663, 4213326, 6319989, 12639978]

約数ペア:

[(1, 12639978), (2, 6319989), (3, 4213326), (6, 2106663), (9, 1404442), (13, 972306), (18, 702221), (19, 665262), (26, 486153), (38, 332631), (39, 324102), (57, 221754), (78, 162051), (114, 110877), (117, 108034), (171, 73918), (234, 54017), (247, 51174), (342, 36959), (494, 25587), (741, 17058), (1482, 8529), (2223, 5686), (2843, 4446)]