20188566

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{15797}}^1$

素因数の和:15876

約数の個数: 24

約数和(自身を含む): 44360784

約数和(自身を除く): 24172218

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 15797, 31594, 47391, 94782, 142173, 284346, 1121587, 2243174, 3364761, 6729522, 10094283, 20188566]

約数ペア:

[(1, 20188566), (2, 10094283), (3, 6729522), (6, 3364761), (9, 2243174), (18, 1121587), (71, 284346), (142, 142173), (213, 94782), (426, 47391), (639, 31594), (1278, 15797)]