21897718

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{2339}}^1$

素因数の和:2523

約数の個数: 16

約数和(自身を含む): 34145280

約数和(自身を除く): 12247562

約数列:

[1, 2, 31, 62, 151, 302, 2339, 4678, 4681, 9362, 72509, 145018, 353189, 706378, 10948859, 21897718]

約数ペア:

[(1, 21897718), (2, 10948859), (31, 706378), (62, 353189), (151, 145018), (302, 72509), (2339, 9362), (4678, 4681)]