123906209

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{331}}^1\times {\mathrm{1009}}^1$

素因数の和:1400

約数の個数: 16

約数和(自身を含む): 144858240

約数和(自身を除く): 20952031

約数列:

[1, 7, 53, 331, 371, 1009, 2317, 7063, 17543, 53477, 122801, 333979, 374339, 2337853, 17700887, 123906209]

約数ペア:

[(1, 123906209), (7, 17700887), (53, 2337853), (331, 374339), (371, 333979), (1009, 122801), (2317, 53477), (7063, 17543)]