21556750

素因数分解:

$2^1\times 5^3\times {\mathrm{23}}^2\times {\mathrm{163}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 42443856

約数和(自身を除く): 20887106

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 115, 125, 163, 230, 250, 326, 529, 575, 815, 1058, 1150, 1630, 2645, 2875, 3749, 4075, 5290, 5750, 7498, 8150, 13225, 18745, 20375, 26450, 37490, 40750, 66125, 86227, 93725, 132250, 172454, 187450, 431135, 468625, 862270, 937250, 2155675, 4311350, 10778375, 21556750]

約数ペア:

[(1, 21556750), (2, 10778375), (5, 4311350), (10, 2155675), (23, 937250), (25, 862270), (46, 468625), (50, 431135), (115, 187450), (125, 172454), (163, 132250), (230, 93725), (250, 86227), (326, 66125), (529, 40750), (575, 37490), (815, 26450), (1058, 20375), (1150, 18745), (1630, 13225), (2645, 8150), (2875, 7498), (3749, 5750), (4075, 5290)]