28274031

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{431}}^1$

素因数の和:671

約数の個数: 24

約数和(自身を含む): 42254784

約数和(自身を除く): 13980753

約数列:

[1, 3, 9, 37, 111, 197, 333, 431, 591, 1293, 1773, 3879, 7289, 15947, 21867, 47841, 65601, 84907, 143523, 254721, 764163, 3141559, 9424677, 28274031]

約数ペア:

[(1, 28274031), (3, 9424677), (9, 3141559), (37, 764163), (111, 254721), (197, 143523), (333, 84907), (431, 65601), (591, 47841), (1293, 21867), (1773, 15947), (3879, 7289)]