18581256

素因数分解:

$2^3\times 3^2\times {\mathrm{421}}^1\times {\mathrm{613}}^1$

素因数の和:1046

約数の個数: 48

約数和(自身を含む): 50526060

約数和(自身を除く): 31944804

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 421, 613, 842, 1226, 1263, 1684, 1839, 2452, 2526, 3368, 3678, 3789, 4904, 5052, 5517, 7356, 7578, 10104, 11034, 14712, 15156, 22068, 30312, 44136, 258073, 516146, 774219, 1032292, 1548438, 2064584, 2322657, 3096876, 4645314, 6193752, 9290628, 18581256]

約数ペア:

[(1, 18581256), (2, 9290628), (3, 6193752), (4, 4645314), (6, 3096876), (8, 2322657), (9, 2064584), (12, 1548438), (18, 1032292), (24, 774219), (36, 516146), (72, 258073), (421, 44136), (613, 30312), (842, 22068), (1226, 15156), (1263, 14712), (1684, 11034), (1839, 10104), (2452, 7578), (2526, 7356), (3368, 5517), (3678, 5052), (3789, 4904)]