21287886

素因数分解:

$2^1\times 3^1\times {\mathrm{31}}^1\times {\mathrm{114451}}^1$

素因数の和:114487

約数の個数: 16

約数和(自身を含む): 43949568

約数和(自身を除く): 22661682

約数列:

[1, 2, 3, 6, 31, 62, 93, 186, 114451, 228902, 343353, 686706, 3547981, 7095962, 10643943, 21287886]

約数ペア:

[(1, 21287886), (2, 10643943), (3, 7095962), (6, 3547981), (31, 686706), (62, 343353), (93, 228902), (186, 114451)]