18687929

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{331}}^1$

素因数の和:488

約数の個数: 16

約数和(自身を含む): 20860224

約数和(自身を除く): 2172295

約数列:

[1, 13, 43, 101, 331, 559, 1313, 4303, 4343, 14233, 33431, 56459, 185029, 434603, 1437533, 18687929]

約数ペア:

[(1, 18687929), (13, 1437533), (43, 434603), (101, 185029), (331, 56459), (559, 33431), (1313, 14233), (4303, 4343)]