20197449

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{463}}^1$

素因数の和:637

約数の個数: 24

約数和(自身を含む): 30256512

約数和(自身を除く): 10059063

約数列:

[1, 3, 9, 37, 111, 131, 333, 393, 463, 1179, 1389, 4167, 4847, 14541, 17131, 43623, 51393, 60653, 154179, 181959, 545877, 2244161, 6732483, 20197449]

約数ペア:

[(1, 20197449), (3, 6732483), (9, 2244161), (37, 545877), (111, 181959), (131, 154179), (333, 60653), (393, 51393), (463, 43623), (1179, 17131), (1389, 14541), (4167, 4847)]