21972583

素因数分解:

${\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:318

約数の個数: 16

約数和(自身を含む): 23500800

約数和(自身を除く): 1528217

約数列:

[1, 31, 67, 71, 149, 2077, 2201, 4619, 4757, 9983, 10579, 147467, 309473, 327949, 708793, 21972583]

約数ペア:

[(1, 21972583), (31, 708793), (67, 327949), (71, 309473), (149, 147467), (2077, 10579), (2201, 9983), (4619, 4757)]