20701555

素因数分解:

$5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{7487}}^1$

素因数の和:7578

約数の個数: 16

約数和(自身を含む): 28753920

約数和(自身を除く): 8052365

約数列:

[1, 5, 7, 35, 79, 395, 553, 2765, 7487, 37435, 52409, 262045, 591473, 2957365, 4140311, 20701555]

約数ペア:

[(1, 20701555), (5, 4140311), (7, 2957365), (35, 591473), (79, 262045), (395, 52409), (553, 37435), (2765, 7487)]