210917420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1506553}}^1$

素因数の和:1506569

約数の個数: 24

約数和(自身を含む): 506202144

約数和(自身を除く): 295284724

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1506553, 3013106, 6026212, 7532765, 10545871, 15065530, 21091742, 30131060, 42183484, 52729355, 105458710, 210917420]

約数ペア:

[(1, 210917420), (2, 105458710), (4, 52729355), (5, 42183484), (7, 30131060), (10, 21091742), (14, 15065530), (20, 10545871), (28, 7532765), (35, 6026212), (70, 3013106), (140, 1506553)]