21617554

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{449}}^1$

素因数の和:658

約数の個数: 32

約数和(自身を含む): 39312000

約数和(自身を除く): 17694446

約数列:

[1, 2, 7, 14, 19, 38, 133, 181, 266, 362, 449, 898, 1267, 2534, 3143, 3439, 6286, 6878, 8531, 17062, 24073, 48146, 59717, 81269, 119434, 162538, 568883, 1137766, 1544111, 3088222, 10808777, 21617554]

約数ペア:

[(1, 21617554), (2, 10808777), (7, 3088222), (14, 1544111), (19, 1137766), (38, 568883), (133, 162538), (181, 119434), (266, 81269), (362, 59717), (449, 48146), (898, 24073), (1267, 17062), (2534, 8531), (3143, 6878), (3439, 6286)]