28706505

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{21503}}^1$

素因数の和:21600

約数の個数: 16

約数和(自身を含む): 46448640

約数和(自身を除く): 17742135

約数列:

[1, 3, 5, 15, 89, 267, 445, 1335, 21503, 64509, 107515, 322545, 1913767, 5741301, 9568835, 28706505]

約数ペア:

[(1, 28706505), (3, 9568835), (5, 5741301), (15, 1913767), (89, 322545), (267, 107515), (445, 64509), (1335, 21503)]