20108578

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{317}}^1$

素因数の和:546

約数の個数: 32

約数和(自身を含む): 36267264

約数和(自身を除く): 16158686

約数列:

[1, 2, 7, 14, 23, 46, 161, 197, 317, 322, 394, 634, 1379, 2219, 2758, 4438, 4531, 7291, 9062, 14582, 31717, 51037, 62449, 63434, 102074, 124898, 437143, 874286, 1436327, 2872654, 10054289, 20108578]

約数ペア:

[(1, 20108578), (2, 10054289), (7, 2872654), (14, 1436327), (23, 874286), (46, 437143), (161, 124898), (197, 102074), (317, 63434), (322, 62449), (394, 51037), (634, 31717), (1379, 14582), (2219, 9062), (2758, 7291), (4438, 4531)]