21005048

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{2447}}^1$

素因数の和:2519

約数の個数: 32

約数和(自身を含む): 41860800

約数和(自身を除く): 20855752

約数列:

[1, 2, 4, 8, 29, 37, 58, 74, 116, 148, 232, 296, 1073, 2146, 2447, 4292, 4894, 8584, 9788, 19576, 70963, 90539, 141926, 181078, 283852, 362156, 567704, 724312, 2625631, 5251262, 10502524, 21005048]

約数ペア:

[(1, 21005048), (2, 10502524), (4, 5251262), (8, 2625631), (29, 724312), (37, 567704), (58, 362156), (74, 283852), (116, 181078), (148, 141926), (232, 90539), (296, 70963), (1073, 19576), (2146, 9788), (2447, 8584), (4292, 4894)]