18993835

素因数分解:

$5^1\times 7^1\times {\mathrm{661}}^1\times {\mathrm{821}}^1$

素因数の和:1494

約数の個数: 16

約数和(自身を含む): 26119872

約数和(自身を除く): 7126037

約数列:

[1, 5, 7, 35, 661, 821, 3305, 4105, 4627, 5747, 23135, 28735, 542681, 2713405, 3798767, 18993835]

約数ペア:

[(1, 18993835), (5, 3798767), (7, 2713405), (35, 542681), (661, 28735), (821, 23135), (3305, 5747), (4105, 4627)]