28212415

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{577}}^1$

素因数の和:727

約数の個数: 32

約数和(自身を含む): 42614784

約数和(自身を除く): 14402369

約数列:

[1, 5, 7, 11, 35, 55, 77, 127, 385, 577, 635, 889, 1397, 2885, 4039, 4445, 6347, 6985, 9779, 20195, 31735, 44429, 48895, 73279, 222145, 366395, 512953, 806069, 2564765, 4030345, 5642483, 28212415]

約数ペア:

[(1, 28212415), (5, 5642483), (7, 4030345), (11, 2564765), (35, 806069), (55, 512953), (77, 366395), (127, 222145), (385, 73279), (577, 48895), (635, 44429), (889, 31735), (1397, 20195), (2885, 9779), (4039, 6985), (4445, 6347)]