28436889

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{547}}^1$

素因数の和:637

約数の個数: 32

約数和(自身を含む): 43208704

約数和(自身を除く): 14771815

約数列:

[1, 3, 13, 31, 39, 43, 93, 129, 403, 547, 559, 1209, 1333, 1641, 1677, 3999, 7111, 16957, 17329, 21333, 23521, 50871, 51987, 70563, 220441, 305773, 661323, 729151, 917319, 2187453, 9478963, 28436889]

約数ペア:

[(1, 28436889), (3, 9478963), (13, 2187453), (31, 917319), (39, 729151), (43, 661323), (93, 305773), (129, 220441), (403, 70563), (547, 51987), (559, 50871), (1209, 23521), (1333, 21333), (1641, 17329), (1677, 16957), (3999, 7111)]