28108210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{216217}}^1$

素因数の和:216237

約数の個数: 16

約数和(自身を含む): 54486936

約数和(自身を除く): 26378726

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 216217, 432434, 1081085, 2162170, 2810821, 5621642, 14054105, 28108210]

約数ペア:

[(1, 28108210), (2, 14054105), (5, 5621642), (10, 2810821), (13, 2162170), (26, 1081085), (65, 432434), (130, 216217)]