21183261

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{20707}}^1$

素因数の和:20752

約数の個数: 16

約数和(自身を含む): 31807488

約数和(自身を除く): 10624227

約数列:

[1, 3, 11, 31, 33, 93, 341, 1023, 20707, 62121, 227777, 641917, 683331, 1925751, 7061087, 21183261]

約数ペア:

[(1, 21183261), (3, 7061087), (11, 1925751), (31, 683331), (33, 641917), (93, 227777), (341, 62121), (1023, 20707)]