21031128

素因数分解:

$2^3\times 3^2\times {\mathrm{43}}^1\times {\mathrm{6793}}^1$

素因数の和:6848

約数の個数: 48

約数和(自身を含む): 58292520

約数和(自身を除く): 37261392

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 43, 72, 86, 129, 172, 258, 344, 387, 516, 774, 1032, 1548, 3096, 6793, 13586, 20379, 27172, 40758, 54344, 61137, 81516, 122274, 163032, 244548, 292099, 489096, 584198, 876297, 1168396, 1752594, 2336792, 2628891, 3505188, 5257782, 7010376, 10515564, 21031128]

約数ペア:

[(1, 21031128), (2, 10515564), (3, 7010376), (4, 5257782), (6, 3505188), (8, 2628891), (9, 2336792), (12, 1752594), (18, 1168396), (24, 876297), (36, 584198), (43, 489096), (72, 292099), (86, 244548), (129, 163032), (172, 122274), (258, 81516), (344, 61137), (387, 54344), (516, 40758), (774, 27172), (1032, 20379), (1548, 13586), (3096, 6793)]