20720658

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{1607}}^1$

素因数の和:1926

約数の個数: 32

約数和(自身を含む): 47545344

約数和(自身を除く): 26824686

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 307, 614, 921, 1607, 1842, 2149, 3214, 4298, 4821, 6447, 9642, 11249, 12894, 22498, 33747, 67494, 493349, 986698, 1480047, 2960094, 3453443, 6906886, 10360329, 20720658]

約数ペア:

[(1, 20720658), (2, 10360329), (3, 6906886), (6, 3453443), (7, 2960094), (14, 1480047), (21, 986698), (42, 493349), (307, 67494), (614, 33747), (921, 22498), (1607, 12894), (1842, 11249), (2149, 9642), (3214, 6447), (4298, 4821)]