28180313

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{1733}}^1$

素因数の和:1864

約数の個数: 16

約数和(自身を含む): 33958656

約数和(自身を除く): 5778343

約数列:

[1, 7, 23, 101, 161, 707, 1733, 2323, 12131, 16261, 39859, 175033, 279013, 1225231, 4025759, 28180313]

約数ペア:

[(1, 28180313), (7, 4025759), (23, 1225231), (101, 279013), (161, 175033), (707, 39859), (1733, 16261), (2323, 12131)]