21001694

素因数分解:

$2^1\times 7^2\times {\mathrm{31}}^2\times {\mathrm{223}}^1$

素因数の和:301

約数の個数: 36

約数和(自身を含む): 38035872

約数和(自身を除く): 17034178

約数列:

[1, 2, 7, 14, 31, 49, 62, 98, 217, 223, 434, 446, 961, 1519, 1561, 1922, 3038, 3122, 6727, 6913, 10927, 13454, 13826, 21854, 47089, 48391, 94178, 96782, 214303, 338737, 428606, 677474, 1500121, 3000242, 10500847, 21001694]

約数ペア:

[(1, 21001694), (2, 10500847), (7, 3000242), (14, 1500121), (31, 677474), (49, 428606), (62, 338737), (98, 214303), (217, 96782), (223, 94178), (434, 48391), (446, 47089), (961, 21854), (1519, 13826), (1561, 13454), (1922, 10927), (3038, 6913), (3122, 6727)]