20005200747

素因数分解:

$3^5\times 7^2\times {\mathrm{1680121}}^1$

素因数の和:1680150

約数の個数: 36

約数和(自身を含む): 34859171256

約数和(自身を除く): 14853970509

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 441, 567, 1323, 1701, 3969, 11907, 1680121, 5040363, 11760847, 15121089, 35282541, 45363267, 82325929, 105847623, 136089801, 246977787, 317542869, 408269403, 740933361, 952628607, 2222800083, 2857885821, 6668400249, 20005200747]

約数ペア:

[(1, 20005200747), (3, 6668400249), (7, 2857885821), (9, 2222800083), (21, 952628607), (27, 740933361), (49, 408269403), (63, 317542869), (81, 246977787), (147, 136089801), (189, 105847623), (243, 82325929), (441, 45363267), (567, 35282541), (1323, 15121089), (1701, 11760847), (3969, 5040363), (11907, 1680121)]