21901921

素因数分解:

${\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:288

約数の個数: 16

約数和(自身を含む): 23284800

約数和(自身を除く): 1382879

約数列:

[1, 43, 59, 89, 97, 2537, 3827, 4171, 5251, 5723, 8633, 225793, 246089, 371219, 509347, 21901921]

約数ペア:

[(1, 21901921), (43, 509347), (59, 371219), (89, 246089), (97, 225793), (2537, 8633), (3827, 5723), (4171, 5251)]