81863565

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{877}}^1$

素因数の和:1026

約数の個数: 48

約数和(自身を含む): 153741312

約数和(自身を除く): 71877747

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 127, 147, 245, 381, 635, 735, 877, 889, 1905, 2631, 2667, 4385, 4445, 6139, 6223, 13155, 13335, 18417, 18669, 30695, 31115, 42973, 92085, 93345, 111379, 128919, 214865, 334137, 556895, 644595, 779653, 1670685, 2338959, 3898265, 5457571, 11694795, 16372713, 27287855, 81863565]

約数ペア:

[(1, 81863565), (3, 27287855), (5, 16372713), (7, 11694795), (15, 5457571), (21, 3898265), (35, 2338959), (49, 1670685), (105, 779653), (127, 644595), (147, 556895), (245, 334137), (381, 214865), (635, 128919), (735, 111379), (877, 93345), (889, 92085), (1905, 42973), (2631, 31115), (2667, 30695), (4385, 18669), (4445, 18417), (6139, 13335), (6223, 13155)]