19773904

素因数分解:

$2^4\times {\mathrm{239}}^1\times {\mathrm{5171}}^1$

素因数の和:5418

約数の個数: 20

約数和(自身を含む): 38479680

約数和(自身を除く): 18705776

約数列:

[1, 2, 4, 8, 16, 239, 478, 956, 1912, 3824, 5171, 10342, 20684, 41368, 82736, 1235869, 2471738, 4943476, 9886952, 19773904]

約数ペア:

[(1, 19773904), (2, 9886952), (4, 4943476), (8, 2471738), (16, 1235869), (239, 82736), (478, 41368), (956, 20684), (1912, 10342), (3824, 5171)]