28181178

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{22051}}^1$

素因数の和:22130

約数の個数: 24

約数和(自身を含む): 61922016

約数和(自身を除く): 33740838

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 22051, 44102, 66153, 132306, 198459, 396918, 1565621, 3131242, 4696863, 9393726, 14090589, 28181178]

約数ペア:

[(1, 28181178), (2, 14090589), (3, 9393726), (6, 4696863), (9, 3131242), (18, 1565621), (71, 396918), (142, 198459), (213, 132306), (426, 66153), (639, 44102), (1278, 22051)]