21017344390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{300247777}}^1$

素因数の和:300247791

約数の個数: 16

約数和(自身を含む): 43235680032

約数和(自身を除く): 22218335642

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 300247777, 600495554, 1501238885, 2101734439, 3002477770, 4203468878, 10508672195, 21017344390]

約数ペア:

[(1, 21017344390), (2, 10508672195), (5, 4203468878), (7, 3002477770), (10, 2101734439), (14, 1501238885), (35, 600495554), (70, 300247777)]