20851428

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1831}}^1$

素因数の和:1924

約数の個数: 48

約数和(自身を含む): 53142656

約数和(自身を除く): 32291228

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 73, 78, 146, 156, 219, 292, 438, 876, 949, 1831, 1898, 2847, 3662, 3796, 5493, 5694, 7324, 10986, 11388, 21972, 23803, 47606, 71409, 95212, 133663, 142818, 267326, 285636, 400989, 534652, 801978, 1603956, 1737619, 3475238, 5212857, 6950476, 10425714, 20851428]

約数ペア:

[(1, 20851428), (2, 10425714), (3, 6950476), (4, 5212857), (6, 3475238), (12, 1737619), (13, 1603956), (26, 801978), (39, 534652), (52, 400989), (73, 285636), (78, 267326), (146, 142818), (156, 133663), (219, 95212), (292, 71409), (438, 47606), (876, 23803), (949, 21972), (1831, 11388), (1898, 10986), (2847, 7324), (3662, 5694), (3796, 5493)]