20877535

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{307}}^1$

素因数の和:415

約数の個数: 32

約数和(自身を含む): 30159360

約数和(自身を除く): 9281825

約数列:

[1, 5, 7, 29, 35, 67, 145, 203, 307, 335, 469, 1015, 1535, 1943, 2149, 2345, 8903, 9715, 10745, 13601, 20569, 44515, 62321, 68005, 102845, 143983, 311605, 596501, 719915, 2982505, 4175507, 20877535]

約数ペア:

[(1, 20877535), (5, 4175507), (7, 2982505), (29, 719915), (35, 596501), (67, 311605), (145, 143983), (203, 102845), (307, 68005), (335, 62321), (469, 44515), (1015, 20569), (1535, 13601), (1943, 10745), (2149, 9715), (2345, 8903)]