21172498

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{677}}^1\times {\mathrm{823}}^1$

素因数の和:1521

約数の個数: 16

約数和(自身を含む): 33520320

約数和(自身を除く): 12347822

約数列:

[1, 2, 19, 38, 677, 823, 1354, 1646, 12863, 15637, 25726, 31274, 557171, 1114342, 10586249, 21172498]

約数ペア:

[(1, 21172498), (2, 10586249), (19, 1114342), (38, 557171), (677, 31274), (823, 25726), (1354, 15637), (1646, 12863)]