21979558

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{461}}^1\times {\mathrm{769}}^1$

素因数の和:1263

約数の個数: 16

約数和(自身を含む): 34151040

約数和(自身を除く): 12171482

約数列:

[1, 2, 31, 62, 461, 769, 922, 1538, 14291, 23839, 28582, 47678, 354509, 709018, 10989779, 21979558]

約数ペア:

[(1, 21979558), (2, 10989779), (31, 709018), (62, 354509), (461, 47678), (769, 28582), (922, 23839), (1538, 14291)]