28578021

素因数分解:

$3^1\times {\mathrm{29}}^2\times {\mathrm{47}}^1\times {\mathrm{241}}^1$

素因数の和:349

約数の個数: 24

約数和(自身を含む): 40470144

約数和(自身を除く): 11892123

約数列:

[1, 3, 29, 47, 87, 141, 241, 723, 841, 1363, 2523, 4089, 6989, 11327, 20967, 33981, 39527, 118581, 202681, 328483, 608043, 985449, 9526007, 28578021]

約数ペア:

[(1, 28578021), (3, 9526007), (29, 985449), (47, 608043), (87, 328483), (141, 202681), (241, 118581), (723, 39527), (841, 33981), (1363, 20967), (2523, 11327), (4089, 6989)]