21129124790

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{381461}}^1$

素因数の和:381688

約数の個数: 32

約数和(自身を含む): 39549980160

約数和(自身を除く): 18420855370

約数列:

[1, 2, 5, 10, 29, 58, 145, 191, 290, 382, 955, 1910, 5539, 11078, 27695, 55390, 381461, 762922, 1907305, 3814610, 11062369, 22124738, 55311845, 72859051, 110623690, 145718102, 364295255, 728590510, 2112912479, 4225824958, 10564562395, 21129124790]

約数ペア:

[(1, 21129124790), (2, 10564562395), (5, 4225824958), (10, 2112912479), (29, 728590510), (58, 364295255), (145, 145718102), (191, 110623690), (290, 72859051), (382, 55311845), (955, 22124738), (1910, 11062369), (5539, 3814610), (11078, 1907305), (27695, 762922), (55390, 381461)]