21013846

素因数分解:

$2^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{6917}}^1$

素因数の和:6964

約数の個数: 24

約数和(自身を含む): 37855296

約数和(自身を除く): 16841450

約数列:

[1, 2, 7, 14, 31, 49, 62, 98, 217, 434, 1519, 3038, 6917, 13834, 48419, 96838, 214427, 338933, 428854, 677866, 1500989, 3001978, 10506923, 21013846]

約数ペア:

[(1, 21013846), (2, 10506923), (7, 3001978), (14, 1500989), (31, 677866), (49, 428854), (62, 338933), (98, 214427), (217, 96838), (434, 48419), (1519, 13834), (3038, 6917)]