28272727

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{2621}}^1$

素因数の和:2718

約数の個数: 16

約数和(自身を含む): 34232832

約数和(自身を除く): 5960105

約数列:

[1, 7, 23, 67, 161, 469, 1541, 2621, 10787, 18347, 60283, 175607, 421981, 1229249, 4038961, 28272727]

約数ペア:

[(1, 28272727), (7, 4038961), (23, 1229249), (67, 421981), (161, 175607), (469, 60283), (1541, 18347), (2621, 10787)]