27921105

素因数分解:

$3^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{971}}^1$

素因数の和:1059

約数の個数: 40

約数和(自身を含む): 50808384

約数和(自身を除く): 22887279

約数列:

[1, 3, 5, 9, 15, 27, 45, 71, 81, 135, 213, 355, 405, 639, 971, 1065, 1917, 2913, 3195, 4855, 5751, 8739, 9585, 14565, 26217, 28755, 43695, 68941, 78651, 131085, 206823, 344705, 393255, 620469, 1034115, 1861407, 3102345, 5584221, 9307035, 27921105]

約数ペア:

[(1, 27921105), (3, 9307035), (5, 5584221), (9, 3102345), (15, 1861407), (27, 1034115), (45, 620469), (71, 393255), (81, 344705), (135, 206823), (213, 131085), (355, 78651), (405, 68941), (639, 43695), (971, 28755), (1065, 26217), (1917, 14565), (2913, 9585), (3195, 8739), (4855, 5751)]