19212245

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:293

約数の個数: 32

約数和(自身を含む): 26417664

約数和(自身を除く): 7205419

約数列:

[1, 5, 13, 23, 65, 71, 115, 181, 299, 355, 905, 923, 1495, 1633, 2353, 4163, 4615, 8165, 11765, 12851, 20815, 21229, 54119, 64255, 106145, 167063, 270595, 295573, 835315, 1477865, 3842449, 19212245]

約数ペア:

[(1, 19212245), (5, 3842449), (13, 1477865), (23, 835315), (65, 295573), (71, 270595), (115, 167063), (181, 106145), (299, 64255), (355, 54119), (905, 21229), (923, 20815), (1495, 12851), (1633, 11765), (2353, 8165), (4163, 4615)]