28878731

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{991}}^1$

素因数の和:1202

約数の個数: 16

約数和(自身を含む): 34664448

約数和(自身を除く): 5785717

約数列:

[1, 7, 23, 161, 181, 991, 1267, 4163, 6937, 22793, 29141, 159551, 179371, 1255597, 4125533, 28878731]

約数ペア:

[(1, 28878731), (7, 4125533), (23, 1255597), (161, 179371), (181, 159551), (991, 29141), (1267, 22793), (4163, 6937)]