20874215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{241}}^1\times {\mathrm{1019}}^1$

素因数の和:1282

約数の個数: 16

約数和(自身を含む): 26658720

約数和(自身を除く): 5784505

約数列:

[1, 5, 17, 85, 241, 1019, 1205, 4097, 5095, 17323, 20485, 86615, 245579, 1227895, 4174843, 20874215]

約数ペア:

[(1, 20874215), (5, 4174843), (17, 1227895), (85, 245579), (241, 86615), (1019, 20485), (1205, 17323), (4097, 5095)]