21854105

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1117}}^1$

素因数の和:1185

約数の個数: 32

約数和(自身を含む): 33057024

約数和(自身を除く): 11202919

約数列:

[1, 5, 7, 13, 35, 43, 65, 91, 215, 301, 455, 559, 1117, 1505, 2795, 3913, 5585, 7819, 14521, 19565, 39095, 48031, 72605, 101647, 240155, 336217, 508235, 624403, 1681085, 3122015, 4370821, 21854105]

約数ペア:

[(1, 21854105), (5, 4370821), (7, 3122015), (13, 1681085), (35, 624403), (43, 508235), (65, 336217), (91, 240155), (215, 101647), (301, 72605), (455, 48031), (559, 39095), (1117, 19565), (1505, 14521), (2795, 7819), (3913, 5585)]