21672195

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{2297}}^1$

素因数の和:2359

約数の個数: 32

約数和(自身を含む): 37723968

約数和(自身を除く): 16051773

約数列:

[1, 3, 5, 15, 17, 37, 51, 85, 111, 185, 255, 555, 629, 1887, 2297, 3145, 6891, 9435, 11485, 34455, 39049, 84989, 117147, 195245, 254967, 424945, 585735, 1274835, 1444813, 4334439, 7224065, 21672195]

約数ペア:

[(1, 21672195), (3, 7224065), (5, 4334439), (15, 1444813), (17, 1274835), (37, 585735), (51, 424945), (85, 254967), (111, 195245), (185, 117147), (255, 84989), (555, 39049), (629, 34455), (1887, 11485), (2297, 9435), (3145, 6891)]