21155384

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{1361}}^1$

素因数の和:1463

約数の個数: 32

約数和(自身を含む): 41677200

約数和(自身を除く): 20521816

約数列:

[1, 2, 4, 8, 29, 58, 67, 116, 134, 232, 268, 536, 1361, 1943, 2722, 3886, 5444, 7772, 10888, 15544, 39469, 78938, 91187, 157876, 182374, 315752, 364748, 729496, 2644423, 5288846, 10577692, 21155384]

約数ペア:

[(1, 21155384), (2, 10577692), (4, 5288846), (8, 2644423), (29, 729496), (58, 364748), (67, 315752), (116, 182374), (134, 157876), (232, 91187), (268, 78938), (536, 39469), (1361, 15544), (1943, 10888), (2722, 7772), (3886, 5444)]