21970524

素因数分解:

$2^2\times 3^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{241}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 52690176

約数和(自身を除く): 30719652

約数列:

[1, 2, 3, 4, 6, 12, 71, 107, 142, 213, 214, 241, 284, 321, 426, 428, 482, 642, 723, 852, 964, 1284, 1446, 2892, 7597, 15194, 17111, 22791, 25787, 30388, 34222, 45582, 51333, 51574, 68444, 77361, 91164, 102666, 103148, 154722, 205332, 309444, 1830877, 3661754, 5492631, 7323508, 10985262, 21970524]

約数ペア:

[(1, 21970524), (2, 10985262), (3, 7323508), (4, 5492631), (6, 3661754), (12, 1830877), (71, 309444), (107, 205332), (142, 154722), (213, 103148), (214, 102666), (241, 91164), (284, 77361), (321, 68444), (426, 51574), (428, 51333), (482, 45582), (642, 34222), (723, 30388), (852, 25787), (964, 22791), (1284, 17111), (1446, 15194), (2892, 7597)]