28289289

素因数分解:

$3^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{9041}}^1$

素因数の和:9200

約数の個数: 16

約数和(自身を含む): 43401600

約数和(自身を除く): 15112311

約数列:

[1, 3, 7, 21, 149, 447, 1043, 3129, 9041, 27123, 63287, 189861, 1347109, 4041327, 9429763, 28289289]

約数ペア:

[(1, 28289289), (3, 9429763), (7, 4041327), (21, 1347109), (149, 189861), (447, 63287), (1043, 27123), (3129, 9041)]