31919890

素因数分解:

$2^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{21139}}^1$

素因数の和:21297

約数の個数: 16

約数和(自身を含む): 57839040

約数和(自身を除く): 25919150

約数列:

[1, 2, 5, 10, 151, 302, 755, 1510, 21139, 42278, 105695, 211390, 3191989, 6383978, 15959945, 31919890]

約数ペア:

[(1, 31919890), (2, 15959945), (5, 6383978), (10, 3191989), (151, 211390), (302, 105695), (755, 42278), (1510, 21139)]