21891883

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{347}}^1$

素因数の和:594

約数の個数: 16

約数和(自身を含む): 24788736

約数和(自身を除く): 2896853

約数列:

[1, 13, 23, 211, 299, 347, 2743, 4511, 4853, 7981, 63089, 73217, 103753, 951821, 1683991, 21891883]

約数ペア:

[(1, 21891883), (13, 1683991), (23, 951821), (211, 103753), (299, 73217), (347, 63089), (2743, 7981), (4511, 4853)]