128936409

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{6389}}^1$

素因数の和:6461

約数の個数: 24

約数和(自身を含む): 203048640

約数和(自身を除く): 74112231

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 961, 2883, 6389, 6727, 19167, 20181, 44723, 134169, 198059, 594177, 1386413, 4159239, 6139829, 18419487, 42978803, 128936409]

約数ペア:

[(1, 128936409), (3, 42978803), (7, 18419487), (21, 6139829), (31, 4159239), (93, 1386413), (217, 594177), (651, 198059), (961, 134169), (2883, 44723), (6389, 20181), (6727, 19167)]