19883493

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{10181}}^1$

素因数の和:10225

約数の個数: 24

約数和(自身を含む): 33885696

約数和(自身を除く): 14002203

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 10181, 30543, 71267, 91629, 213801, 315611, 641403, 946833, 2209277, 2840499, 6627831, 19883493]

約数ペア:

[(1, 19883493), (3, 6627831), (7, 2840499), (9, 2209277), (21, 946833), (31, 641403), (63, 315611), (93, 213801), (217, 91629), (279, 71267), (651, 30543), (1953, 10181)]