21520343032

素因数分解:

$2^3\times {\mathrm{16993}}^1\times {\mathrm{158303}}^1$

素因数の和:175302

約数の個数: 16

約数和(自身を含む): 40353272640

約数和(自身を除く): 18832929608

約数列:

[1, 2, 4, 8, 16993, 33986, 67972, 135944, 158303, 316606, 633212, 1266424, 2690042879, 5380085758, 10760171516, 21520343032]

約数ペア:

[(1, 21520343032), (2, 10760171516), (4, 5380085758), (8, 2690042879), (16993, 1266424), (33986, 633212), (67972, 316606), (135944, 158303)]