21476970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1879}}^1$

素因数の和:2019

約数の個数: 48

約数和(自身を含む): 56309760

約数和(自身を除く): 34832790

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 127, 254, 381, 635, 762, 1143, 1270, 1879, 1905, 2286, 3758, 3810, 5637, 5715, 9395, 11274, 11430, 16911, 18790, 28185, 33822, 56370, 84555, 169110, 238633, 477266, 715899, 1193165, 1431798, 2147697, 2386330, 3579495, 4295394, 7158990, 10738485, 21476970]

約数ペア:

[(1, 21476970), (2, 10738485), (3, 7158990), (5, 4295394), (6, 3579495), (9, 2386330), (10, 2147697), (15, 1431798), (18, 1193165), (30, 715899), (45, 477266), (90, 238633), (127, 169110), (254, 84555), (381, 56370), (635, 33822), (762, 28185), (1143, 18790), (1270, 16911), (1879, 11430), (1905, 11274), (2286, 9395), (3758, 5715), (3810, 5637)]