28108157

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1$

素因数の和:341

約数の個数: 32

約数和(自身を含む): 37635840

約数和(自身を除く): 9527683

約数列:

[1, 7, 11, 17, 77, 109, 119, 187, 197, 763, 1199, 1309, 1379, 1853, 2167, 3349, 8393, 12971, 15169, 20383, 21473, 23443, 36839, 142681, 150311, 236203, 257873, 365041, 1653421, 2555287, 4015451, 28108157]

約数ペア:

[(1, 28108157), (7, 4015451), (11, 2555287), (17, 1653421), (77, 365041), (109, 257873), (119, 236203), (187, 150311), (197, 142681), (763, 36839), (1199, 23443), (1309, 21473), (1379, 20383), (1853, 15169), (2167, 12971), (3349, 8393)]