19965519

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{10223}}^1$

素因数の和:10267

約数の個数: 24

約数和(自身を含む): 34025472

約数和(自身を除く): 14059953

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 10223, 30669, 71561, 92007, 214683, 316913, 644049, 950739, 2218391, 2852217, 6655173, 19965519]

約数ペア:

[(1, 19965519), (3, 6655173), (7, 2852217), (9, 2218391), (21, 950739), (31, 644049), (63, 316913), (93, 214683), (217, 92007), (279, 71561), (651, 30669), (1953, 10223)]