21537281

素因数分解:

${\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1$

素因数の和:332

約数の個数: 16

約数和(自身を含む): 23113728

約数和(自身を除く): 1576447

約数列:

[1, 31, 43, 107, 151, 1333, 3317, 4601, 4681, 6493, 16157, 142631, 201283, 500867, 694751, 21537281]

約数ペア:

[(1, 21537281), (31, 694751), (43, 500867), (107, 201283), (151, 142631), (1333, 16157), (3317, 6493), (4601, 4681)]