20653815

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15131}}^1$

素因数の和:15159

約数の個数: 32

約数和(自身を含む): 40674816

約数和(自身を除く): 20021001

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 15131, 45393, 75655, 105917, 196703, 226965, 317751, 529585, 590109, 983515, 1376921, 1588755, 2950545, 4130763, 6884605, 20653815]

約数ペア:

[(1, 20653815), (3, 6884605), (5, 4130763), (7, 2950545), (13, 1588755), (15, 1376921), (21, 983515), (35, 590109), (39, 529585), (65, 317751), (91, 226965), (105, 196703), (195, 105917), (273, 75655), (455, 45393), (1365, 15131)]