21711156

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{457}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 52629696

約数和(自身を除く): 30918540

約数列:

[1, 2, 3, 4, 6, 12, 37, 74, 107, 111, 148, 214, 222, 321, 428, 444, 457, 642, 914, 1284, 1371, 1828, 2742, 3959, 5484, 7918, 11877, 15836, 16909, 23754, 33818, 47508, 48899, 50727, 67636, 97798, 101454, 146697, 195596, 202908, 293394, 586788, 1809263, 3618526, 5427789, 7237052, 10855578, 21711156]

約数ペア:

[(1, 21711156), (2, 10855578), (3, 7237052), (4, 5427789), (6, 3618526), (12, 1809263), (37, 586788), (74, 293394), (107, 202908), (111, 195596), (148, 146697), (214, 101454), (222, 97798), (321, 67636), (428, 50727), (444, 48899), (457, 47508), (642, 33818), (914, 23754), (1284, 16909), (1371, 15836), (1828, 11877), (2742, 7918), (3959, 5484)]