18793959

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{53}}^1\times {\mathrm{409}}^1$

素因数の和:499

約数の個数: 24

約数和(自身を含む): 27187920

約数和(自身を除く): 8393961

約数列:

[1, 3, 17, 51, 53, 159, 289, 409, 867, 901, 1227, 2703, 6953, 15317, 20859, 21677, 45951, 65031, 118201, 354603, 368509, 1105527, 6264653, 18793959]

約数ペア:

[(1, 18793959), (3, 6264653), (17, 1105527), (51, 368509), (53, 354603), (159, 118201), (289, 65031), (409, 45951), (867, 21677), (901, 20859), (1227, 15317), (2703, 6953)]