21381113

素因数分解:

${\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:392

約数の個数: 16

約数和(自身を含む): 23654400

約数和(自身を除く): 2273287

約数列:

[1, 13, 79, 109, 191, 1027, 1417, 2483, 8611, 15089, 20819, 111943, 196157, 270647, 1644701, 21381113]

約数ペア:

[(1, 21381113), (13, 1644701), (79, 270647), (109, 196157), (191, 111943), (1027, 20819), (1417, 15089), (2483, 8611)]