21216864

素因数分解:

$2^5\times 3^1\times {\mathrm{29}}^1\times {\mathrm{7621}}^1$

素因数の和:7663

約数の個数: 48

約数和(自身を含む): 57622320

約数和(自身を除く): 36405456

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 32, 48, 58, 87, 96, 116, 174, 232, 348, 464, 696, 928, 1392, 2784, 7621, 15242, 22863, 30484, 45726, 60968, 91452, 121936, 182904, 221009, 243872, 365808, 442018, 663027, 731616, 884036, 1326054, 1768072, 2652108, 3536144, 5304216, 7072288, 10608432, 21216864]

約数ペア:

[(1, 21216864), (2, 10608432), (3, 7072288), (4, 5304216), (6, 3536144), (8, 2652108), (12, 1768072), (16, 1326054), (24, 884036), (29, 731616), (32, 663027), (48, 442018), (58, 365808), (87, 243872), (96, 221009), (116, 182904), (174, 121936), (232, 91452), (348, 60968), (464, 45726), (696, 30484), (928, 22863), (1392, 15242), (2784, 7621)]