28971205

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1\times {\mathrm{601}}^1$

素因数の和:948

約数の個数: 16

約数和(自身を含む): 36062208

約数和(自身を除く): 7091003

約数列:

[1, 5, 31, 155, 311, 601, 1555, 3005, 9641, 18631, 48205, 93155, 186911, 934555, 5794241, 28971205]

約数ペア:

[(1, 28971205), (5, 5794241), (31, 934555), (155, 186911), (311, 93155), (601, 48205), (1555, 18631), (3005, 9641)]