20120031519

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{129841}}^1$

素因数の和:130055

約数の個数: 32

約数和(自身を含む): 31511095296

約数和(自身を除く): 11391063777

約数列:

[1, 3, 7, 21, 47, 141, 157, 329, 471, 987, 1099, 3297, 7379, 22137, 51653, 129841, 154959, 389523, 908887, 2726661, 6102527, 18307581, 20385037, 42717689, 61155111, 128153067, 142695259, 428085777, 958096739, 2874290217, 6706677173, 20120031519]

約数ペア:

[(1, 20120031519), (3, 6706677173), (7, 2874290217), (21, 958096739), (47, 428085777), (141, 142695259), (157, 128153067), (329, 61155111), (471, 42717689), (987, 20385037), (1099, 18307581), (3297, 6102527), (7379, 2726661), (22137, 908887), (51653, 389523), (129841, 154959)]