17220519

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{7331}}^1$

素因数の和:7372

約数の個数: 20

約数和(自身を含む): 26615160

約数和(自身を除く): 9394641

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 7331, 21993, 65979, 197937, 212599, 593811, 637797, 1913391, 5740173, 17220519]

約数ペア:

[(1, 17220519), (3, 5740173), (9, 1913391), (27, 637797), (29, 593811), (81, 212599), (87, 197937), (261, 65979), (783, 21993), (2349, 7331)]