20731282

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{419}}^1$

素因数の和:618

約数の個数: 32

約数和(自身を含む): 36832320

約数和(自身を除く): 16101038

約数列:

[1, 2, 11, 13, 22, 26, 143, 173, 286, 346, 419, 838, 1903, 2249, 3806, 4498, 4609, 5447, 9218, 10894, 24739, 49478, 59917, 72487, 119834, 144974, 797357, 942331, 1594714, 1884662, 10365641, 20731282]

約数ペア:

[(1, 20731282), (2, 10365641), (11, 1884662), (13, 1594714), (22, 942331), (26, 797357), (143, 144974), (173, 119834), (286, 72487), (346, 59917), (419, 49478), (838, 24739), (1903, 10894), (2249, 9218), (3806, 5447), (4498, 4609)]