20121986718

素因数分解:

$2^1\times 3^2\times {\mathrm{401}}^1\times {\mathrm{2787751}}^1$

素因数の和:2788160

約数の個数: 24

約数和(自身を含む): 43706375856

約数和(自身を除く): 23584389138

約数列:

[1, 2, 3, 6, 9, 18, 401, 802, 1203, 2406, 3609, 7218, 2787751, 5575502, 8363253, 16726506, 25089759, 50179518, 1117888151, 2235776302, 3353664453, 6707328906, 10060993359, 20121986718]

約数ペア:

[(1, 20121986718), (2, 10060993359), (3, 6707328906), (6, 3353664453), (9, 2235776302), (18, 1117888151), (401, 50179518), (802, 25089759), (1203, 16726506), (2406, 8363253), (3609, 5575502), (7218, 2787751)]