19861551

素因数分解:

$3^3\times {\mathrm{149}}^1\times {\mathrm{4937}}^1$

素因数の和:5095

約数の個数: 16

約数和(自身を含む): 29628000

約数和(自身を除く): 9766449

約数列:

[1, 3, 9, 27, 149, 447, 1341, 4023, 4937, 14811, 44433, 133299, 735613, 2206839, 6620517, 19861551]

約数ペア:

[(1, 19861551), (3, 6620517), (9, 2206839), (27, 735613), (149, 133299), (447, 44433), (1341, 14811), (4023, 4937)]