21223510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{641}}^1$

素因数の和:709

約数の個数: 64

約数和(自身を含む): 48812544

約数和(自身を除く): 27589034

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 43, 55, 70, 77, 86, 110, 154, 215, 301, 385, 430, 473, 602, 641, 770, 946, 1282, 1505, 2365, 3010, 3205, 3311, 4487, 4730, 6410, 6622, 7051, 8974, 14102, 16555, 22435, 27563, 33110, 35255, 44870, 49357, 55126, 70510, 98714, 137815, 192941, 246785, 275630, 303193, 385882, 493570, 606386, 964705, 1515965, 1929410, 2122351, 3031930, 4244702, 10611755, 21223510]

約数ペア:

[(1, 21223510), (2, 10611755), (5, 4244702), (7, 3031930), (10, 2122351), (11, 1929410), (14, 1515965), (22, 964705), (35, 606386), (43, 493570), (55, 385882), (70, 303193), (77, 275630), (86, 246785), (110, 192941), (154, 137815), (215, 98714), (301, 70510), (385, 55126), (430, 49357), (473, 44870), (602, 35255), (641, 33110), (770, 27563), (946, 22435), (1282, 16555), (1505, 14102), (2365, 8974), (3010, 7051), (3205, 6622), (3311, 6410), (4487, 4730)]