211325865

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{6971}}^1$

素因数の和:7069

約数の個数: 32

約数和(自身を含む): 353396736

約数和(自身を除く): 142070871

約数列:

[1, 3, 5, 15, 43, 47, 129, 141, 215, 235, 645, 705, 2021, 6063, 6971, 10105, 20913, 30315, 34855, 104565, 299753, 327637, 899259, 982911, 1498765, 1638185, 4496295, 4914555, 14088391, 42265173, 70441955, 211325865]

約数ペア:

[(1, 211325865), (3, 70441955), (5, 42265173), (15, 14088391), (43, 4914555), (47, 4496295), (129, 1638185), (141, 1498765), (215, 982911), (235, 899259), (645, 327637), (705, 299753), (2021, 104565), (6063, 34855), (6971, 30315), (10105, 20913)]