18945327

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:279

約数の個数: 32

約数和(自身を含む): 28055808

約数和(自身を除く): 9110481

約数列:

[1, 3, 17, 43, 51, 53, 129, 159, 163, 489, 731, 901, 2193, 2279, 2703, 2771, 6837, 7009, 8313, 8639, 21027, 25917, 38743, 116229, 119153, 146863, 357459, 371477, 440589, 1114431, 6315109, 18945327]

約数ペア:

[(1, 18945327), (3, 6315109), (17, 1114431), (43, 440589), (51, 371477), (53, 357459), (129, 146863), (159, 119153), (163, 116229), (489, 38743), (731, 25917), (901, 21027), (2193, 8639), (2279, 8313), (2703, 7009), (2771, 6837)]