28781809

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{3373}}^1$

素因数の和:3456

約数の個数: 16

約数和(自身を含む): 34981632

約数和(自身を除く): 6199823

約数列:

[1, 7, 23, 53, 161, 371, 1219, 3373, 8533, 23611, 77579, 178769, 543053, 1251383, 4111687, 28781809]

約数ペア:

[(1, 28781809), (7, 4111687), (23, 1251383), (53, 543053), (161, 178769), (371, 77579), (1219, 23611), (3373, 8533)]