21235986

素因数分解:

$2^1\times 3^3\times {\mathrm{479}}^1\times {\mathrm{821}}^1$

素因数の和:1311

約数の個数: 32

約数和(自身を含む): 47347200

約数和(自身を除く): 26111214

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 479, 821, 958, 1437, 1642, 2463, 2874, 4311, 4926, 7389, 8622, 12933, 14778, 22167, 25866, 44334, 393259, 786518, 1179777, 2359554, 3539331, 7078662, 10617993, 21235986]

約数ペア:

[(1, 21235986), (2, 10617993), (3, 7078662), (6, 3539331), (9, 2359554), (18, 1179777), (27, 786518), (54, 393259), (479, 44334), (821, 25866), (958, 22167), (1437, 14778), (1642, 12933), (2463, 8622), (2874, 7389), (4311, 4926)]