21068138

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{719}}^1$

素因数の和:771

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 20300182

約数列:

[1, 2, 7, 13, 14, 23, 26, 46, 49, 91, 98, 161, 182, 299, 322, 598, 637, 719, 1127, 1274, 1438, 2093, 2254, 4186, 5033, 9347, 10066, 14651, 16537, 18694, 29302, 33074, 35231, 65429, 70462, 115759, 130858, 214981, 231518, 429962, 458003, 810313, 916006, 1504867, 1620626, 3009734, 10534069, 21068138]

約数ペア:

[(1, 21068138), (2, 10534069), (7, 3009734), (13, 1620626), (14, 1504867), (23, 916006), (26, 810313), (46, 458003), (49, 429962), (91, 231518), (98, 214981), (161, 130858), (182, 115759), (299, 70462), (322, 65429), (598, 35231), (637, 33074), (719, 29302), (1127, 18694), (1274, 16537), (1438, 14651), (2093, 10066), (2254, 9347), (4186, 5033)]