19968377

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{449}}^1$

素因数の和:784

約数の個数: 16

約数和(自身を含む): 23587200

約数和(自身を除く): 3618823

約数列:

[1, 11, 13, 143, 311, 449, 3421, 4043, 4939, 5837, 44473, 64207, 139639, 1536029, 1815307, 19968377]

約数ペア:

[(1, 19968377), (11, 1815307), (13, 1536029), (143, 139639), (311, 64207), (449, 44473), (3421, 5837), (4043, 4939)]