1998543

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1$

素因数の和:294

約数の個数: 16

約数和(自身を含む): 2765696

約数和(自身を除く): 767153

約数列:

[1, 3, 61, 67, 163, 183, 201, 489, 4087, 9943, 10921, 12261, 29829, 32763, 666181, 1998543]

約数ペア:

[(1, 1998543), (3, 666181), (61, 32763), (67, 29829), (163, 12261), (183, 10921), (201, 9943), (489, 4087)]