21247174

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{12197}}^1$

素因数の和:12279

約数の個数: 16

約数和(自身を含む): 34837488

約数和(自身を除く): 13590314

約数列:

[1, 2, 13, 26, 67, 134, 871, 1742, 12197, 24394, 158561, 317122, 817199, 1634398, 10623587, 21247174]

約数ペア:

[(1, 21247174), (2, 10623587), (13, 1634398), (26, 817199), (67, 317122), (134, 158561), (871, 24394), (1742, 12197)]