21090654

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{467}}^1$

素因数の和:681

約数の個数: 48

約数和(自身を含む): 49572432

約数和(自身を除く): 28481778

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 193, 234, 386, 467, 579, 934, 1158, 1401, 1737, 2509, 2802, 3474, 4203, 5018, 6071, 7527, 8406, 12142, 15054, 18213, 22581, 36426, 45162, 54639, 90131, 109278, 180262, 270393, 540786, 811179, 1171703, 1622358, 2343406, 3515109, 7030218, 10545327, 21090654]

約数ペア:

[(1, 21090654), (2, 10545327), (3, 7030218), (6, 3515109), (9, 2343406), (13, 1622358), (18, 1171703), (26, 811179), (39, 540786), (78, 270393), (117, 180262), (193, 109278), (234, 90131), (386, 54639), (467, 45162), (579, 36426), (934, 22581), (1158, 18213), (1401, 15054), (1737, 12142), (2509, 8406), (2802, 7527), (3474, 6071), (4203, 5018)]