21054980

素因数分解:

$2^2\times 5^1\times {\mathrm{293}}^1\times {\mathrm{3593}}^1$

素因数の和:3895

約数の個数: 24

約数和(自身を含む): 44378712

約数和(自身を除く): 23323732

約数列:

[1, 2, 4, 5, 10, 20, 293, 586, 1172, 1465, 2930, 3593, 5860, 7186, 14372, 17965, 35930, 71860, 1052749, 2105498, 4210996, 5263745, 10527490, 21054980]

約数ペア:

[(1, 21054980), (2, 10527490), (4, 5263745), (5, 4210996), (10, 2105498), (20, 1052749), (293, 71860), (586, 35930), (1172, 17965), (1465, 14372), (2930, 7186), (3593, 5860)]