21119685

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1033}}^1$

素因数の和:1117

約数の個数: 32

約数和(自身を含む): 35735040

約数和(自身を除く): 14615355

約数列:

[1, 3, 5, 15, 29, 47, 87, 141, 145, 235, 435, 705, 1033, 1363, 3099, 4089, 5165, 6815, 15495, 20445, 29957, 48551, 89871, 145653, 149785, 242755, 449355, 728265, 1407979, 4223937, 7039895, 21119685]

約数ペア:

[(1, 21119685), (3, 7039895), (5, 4223937), (15, 1407979), (29, 728265), (47, 449355), (87, 242755), (141, 149785), (145, 145653), (235, 89871), (435, 48551), (705, 29957), (1033, 20445), (1363, 15495), (3099, 6815), (4089, 5165)]