20990370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{6793}}^1$

素因数の和:6906

約数の個数: 32

約数和(自身を含む): 50873472

約数和(自身を除く): 29883102

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 103, 206, 309, 515, 618, 1030, 1545, 3090, 6793, 13586, 20379, 33965, 40758, 67930, 101895, 203790, 699679, 1399358, 2099037, 3498395, 4198074, 6996790, 10495185, 20990370]

約数ペア:

[(1, 20990370), (2, 10495185), (3, 6996790), (5, 4198074), (6, 3498395), (10, 2099037), (15, 1399358), (30, 699679), (103, 203790), (206, 101895), (309, 67930), (515, 40758), (618, 33965), (1030, 20379), (1545, 13586), (3090, 6793)]