20187956

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{491}}^1\times {\mathrm{541}}^1$

素因数の和:1055

約数の個数: 24

約数和(自身を含む): 37332960

約数和(自身を除く): 17145004

約数列:

[1, 2, 4, 19, 38, 76, 491, 541, 982, 1082, 1964, 2164, 9329, 10279, 18658, 20558, 37316, 41116, 265631, 531262, 1062524, 5046989, 10093978, 20187956]

約数ペア:

[(1, 20187956), (2, 10093978), (4, 5046989), (19, 1062524), (38, 531262), (76, 265631), (491, 41116), (541, 37316), (982, 20558), (1082, 18658), (1964, 10279), (2164, 9329)]