18662279

素因数分解:

${\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:302

約数の個数: 16

約数和(自身を含む): 19998720

約数和(自身を除く): 1336441

約数列:

[1, 31, 61, 71, 139, 1891, 2201, 4309, 4331, 8479, 9869, 134261, 262849, 305939, 602009, 18662279]

約数ペア:

[(1, 18662279), (31, 602009), (61, 305939), (71, 262849), (139, 134261), (1891, 9869), (2201, 8479), (4309, 4331)]