20680716

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{1289}}^1$

素因数の和:1494

約数の個数: 48

約数和(自身を含む): 55480320

約数和(自身を除く): 34799604

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 191, 382, 573, 764, 1146, 1289, 1337, 2292, 2578, 2674, 3867, 4011, 5156, 5348, 7734, 8022, 9023, 15468, 16044, 18046, 27069, 36092, 54138, 108276, 246199, 492398, 738597, 984796, 1477194, 1723393, 2954388, 3446786, 5170179, 6893572, 10340358, 20680716]

約数ペア:

[(1, 20680716), (2, 10340358), (3, 6893572), (4, 5170179), (6, 3446786), (7, 2954388), (12, 1723393), (14, 1477194), (21, 984796), (28, 738597), (42, 492398), (84, 246199), (191, 108276), (382, 54138), (573, 36092), (764, 27069), (1146, 18046), (1289, 16044), (1337, 15468), (2292, 9023), (2578, 8022), (2674, 7734), (3867, 5348), (4011, 5156)]