21298996978

素因数分解:

$2^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1709}}^1\times {\mathrm{8167}}^1$

素因数の和:9994

約数の個数: 32

約数和(自身を含む): 36873619200

約数和(自身を除く): 15574622222

約数列:

[1, 2, 7, 14, 109, 218, 763, 1526, 1709, 3418, 8167, 11963, 16334, 23926, 57169, 114338, 186281, 372562, 890203, 1303967, 1780406, 2607934, 6231421, 12462842, 13957403, 27914806, 97701821, 195403642, 1521356927, 3042713854, 10649498489, 21298996978]

約数ペア:

[(1, 21298996978), (2, 10649498489), (7, 3042713854), (14, 1521356927), (109, 195403642), (218, 97701821), (763, 27914806), (1526, 13957403), (1709, 12462842), (3418, 6231421), (8167, 2607934), (11963, 1780406), (16334, 1303967), (23926, 890203), (57169, 372562), (114338, 186281)]