12781638

素因数分解:

$2^1\times 3^4\times {\mathrm{257}}^1\times {\mathrm{307}}^1$

素因数の和:578

約数の個数: 40

約数和(自身を含む): 28845432

約数和(自身を除く): 16063794

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 257, 307, 514, 614, 771, 921, 1542, 1842, 2313, 2763, 4626, 5526, 6939, 8289, 13878, 16578, 20817, 24867, 41634, 49734, 78899, 157798, 236697, 473394, 710091, 1420182, 2130273, 4260546, 6390819, 12781638]

約数ペア:

[(1, 12781638), (2, 6390819), (3, 4260546), (6, 2130273), (9, 1420182), (18, 710091), (27, 473394), (54, 236697), (81, 157798), (162, 78899), (257, 49734), (307, 41634), (514, 24867), (614, 20817), (771, 16578), (921, 13878), (1542, 8289), (1842, 6939), (2313, 5526), (2763, 4626)]