19778178

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{1063}}^1$

素因数の和:1518

約数の個数: 32

約数和(自身を含む): 45351936

約数和(自身を除く): 25573758

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 443, 886, 1063, 1329, 2126, 2658, 3101, 3189, 6202, 6378, 7441, 9303, 14882, 18606, 22323, 44646, 470909, 941818, 1412727, 2825454, 3296363, 6592726, 9889089, 19778178]

約数ペア:

[(1, 19778178), (2, 9889089), (3, 6592726), (6, 3296363), (7, 2825454), (14, 1412727), (21, 941818), (42, 470909), (443, 44646), (886, 22323), (1063, 18606), (1329, 14882), (2126, 9303), (2658, 7441), (3101, 6378), (3189, 6202)]