20117778

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{1997}}^1$

素因数の和:2098

約数の個数: 32

約数和(自身を含む): 42581376

約数和(自身を除く): 22463598

約数列:

[1, 2, 3, 6, 23, 46, 69, 73, 138, 146, 219, 438, 1679, 1997, 3358, 3994, 5037, 5991, 10074, 11982, 45931, 91862, 137793, 145781, 275586, 291562, 437343, 874686, 3352963, 6705926, 10058889, 20117778]

約数ペア:

[(1, 20117778), (2, 10058889), (3, 6705926), (6, 3352963), (23, 874686), (46, 437343), (69, 291562), (73, 275586), (138, 145781), (146, 137793), (219, 91862), (438, 45931), (1679, 11982), (1997, 10074), (3358, 5991), (3994, 5037)]