17999973

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{105263}}^1$

素因数の和:105288

約数の個数: 12

約数和(自身を含む): 27368640

約数和(自身を除く): 9368667

約数列:

[1, 3, 9, 19, 57, 171, 105263, 315789, 947367, 1999997, 5999991, 17999973]

約数ペア:

[(1, 17999973), (3, 5999991), (9, 1999997), (19, 947367), (57, 315789), (171, 105263)]