21841288

素因数分解:

$2^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{4937}}^1$

素因数の和:5029

約数の個数: 32

約数和(自身を含む): 47404800

約数和(自身を除く): 25563512

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 79, 158, 316, 553, 632, 1106, 2212, 4424, 4937, 9874, 19748, 34559, 39496, 69118, 138236, 276472, 390023, 780046, 1560092, 2730161, 3120184, 5460322, 10920644, 21841288]

約数ペア:

[(1, 21841288), (2, 10920644), (4, 5460322), (7, 3120184), (8, 2730161), (14, 1560092), (28, 780046), (56, 390023), (79, 276472), (158, 138236), (316, 69118), (553, 39496), (632, 34559), (1106, 19748), (2212, 9874), (4424, 4937)]