20315715

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{1013}}^1$

素因数の和:1219

約数の個数: 32

約数和(自身を含む): 37380096

約数和(自身を除く): 17064381

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 191, 573, 955, 1013, 1337, 2865, 3039, 4011, 5065, 6685, 7091, 15195, 20055, 21273, 35455, 106365, 193483, 580449, 967415, 1354381, 2902245, 4063143, 6771905, 20315715]

約数ペア:

[(1, 20315715), (3, 6771905), (5, 4063143), (7, 2902245), (15, 1354381), (21, 967415), (35, 580449), (105, 193483), (191, 106365), (573, 35455), (955, 21273), (1013, 20055), (1337, 15195), (2865, 7091), (3039, 6685), (4011, 5065)]