21893672

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{66749}}^1$

素因数の和:66796

約数の個数: 16

約数和(自身を含む): 42052500

約数和(自身を除く): 20158828

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 66749, 133498, 266996, 533992, 2736709, 5473418, 10946836, 21893672]

約数ペア:

[(1, 21893672), (2, 10946836), (4, 5473418), (8, 2736709), (41, 533992), (82, 266996), (164, 133498), (328, 66749)]