21638824

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{1487}}^1$

素因数の和:1617

約数の個数: 32

約数和(自身を含む): 43390080

約数和(自身を除く): 21751256

約数列:

[1, 2, 4, 8, 17, 34, 68, 107, 136, 214, 428, 856, 1487, 1819, 2974, 3638, 5948, 7276, 11896, 14552, 25279, 50558, 101116, 159109, 202232, 318218, 636436, 1272872, 2704853, 5409706, 10819412, 21638824]

約数ペア:

[(1, 21638824), (2, 10819412), (4, 5409706), (8, 2704853), (17, 1272872), (34, 636436), (68, 318218), (107, 202232), (136, 159109), (214, 101116), (428, 50558), (856, 25279), (1487, 14552), (1819, 11896), (2974, 7276), (3638, 5948)]