28218788

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{1289}}^1$

素因数の和:1727

約数の個数: 24

約数和(自身を含む): 53349240

約数和(自身を除く): 25130452

約数列:

[1, 2, 4, 13, 26, 52, 421, 842, 1289, 1684, 2578, 5156, 5473, 10946, 16757, 21892, 33514, 67028, 542669, 1085338, 2170676, 7054697, 14109394, 28218788]

約数ペア:

[(1, 28218788), (2, 14109394), (4, 7054697), (13, 2170676), (26, 1085338), (52, 542669), (421, 67028), (842, 33514), (1289, 21892), (1684, 16757), (2578, 10946), (5156, 5473)]