18706796

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{199}}^1\times {\mathrm{331}}^1$

素因数の和:605

約数の個数: 24

約数和(自身を含む): 33465600

約数和(自身を除く): 14758804

約数列:

[1, 2, 4, 71, 142, 199, 284, 331, 398, 662, 796, 1324, 14129, 23501, 28258, 47002, 56516, 65869, 94004, 131738, 263476, 4676699, 9353398, 18706796]

約数ペア:

[(1, 18706796), (2, 9353398), (4, 4676699), (71, 263476), (142, 131738), (199, 94004), (284, 65869), (331, 56516), (398, 47002), (662, 28258), (796, 23501), (1324, 14129)]