19181816

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1709}}^1$

素因数の和:1799

約数の個数: 32

約数和(自身を含む): 38167200

約数和(自身を除く): 18985384

約数列:

[1, 2, 4, 8, 23, 46, 61, 92, 122, 184, 244, 488, 1403, 1709, 2806, 3418, 5612, 6836, 11224, 13672, 39307, 78614, 104249, 157228, 208498, 314456, 416996, 833992, 2397727, 4795454, 9590908, 19181816]

約数ペア:

[(1, 19181816), (2, 9590908), (4, 4795454), (8, 2397727), (23, 833992), (46, 416996), (61, 314456), (92, 208498), (122, 157228), (184, 104249), (244, 78614), (488, 39307), (1403, 13672), (1709, 11224), (2806, 6836), (3418, 5612)]