18985993

素因数分解:

${\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1\times {\mathrm{199}}^1$

素因数の和:432

約数の個数: 16

約数和(自身を含む): 21168000

約数和(自身を除く): 2182007

約数列:

[1, 13, 41, 179, 199, 533, 2327, 2587, 7339, 8159, 35621, 95407, 106067, 463073, 1460461, 18985993]

約数ペア:

[(1, 18985993), (13, 1460461), (41, 463073), (179, 106067), (199, 95407), (533, 35621), (2327, 8159), (2587, 7339)]