20431918

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{317}}^1$

素因数の和:436

約数の個数: 32

約数和(自身を含む): 34511904

約数和(自身を除く): 14079986

約数列:

[1, 2, 13, 26, 37, 67, 74, 134, 317, 481, 634, 871, 962, 1742, 2479, 4121, 4958, 8242, 11729, 21239, 23458, 32227, 42478, 64454, 152477, 276107, 304954, 552214, 785843, 1571686, 10215959, 20431918]

約数ペア:

[(1, 20431918), (2, 10215959), (13, 1571686), (26, 785843), (37, 552214), (67, 304954), (74, 276107), (134, 152477), (317, 64454), (481, 42478), (634, 32227), (871, 23458), (962, 21239), (1742, 11729), (2479, 8242), (4121, 4958)]