215540829

素因数分解:

$3^2\times 7^1\times {\mathrm{829}}^1\times {\mathrm{4127}}^1$

素因数の和:4969

約数の個数: 24

約数和(自身を含む): 356328960

約数和(自身を除く): 140788131

約数列:

[1, 3, 7, 9, 21, 63, 829, 2487, 4127, 5803, 7461, 12381, 17409, 28889, 37143, 52227, 86667, 260001, 3421283, 10263849, 23948981, 30791547, 71846943, 215540829]

約数ペア:

[(1, 215540829), (3, 71846943), (7, 30791547), (9, 23948981), (21, 10263849), (63, 3421283), (829, 260001), (2487, 86667), (4127, 52227), (5803, 37143), (7461, 28889), (12381, 17409)]