21561195

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{733}}^1$

素因数の和:831

約数の個数: 32

約数和(自身を含む): 36148032

約数和(自身を除く): 14586837

約数列:

[1, 3, 5, 15, 37, 53, 111, 159, 185, 265, 555, 733, 795, 1961, 2199, 3665, 5883, 9805, 10995, 27121, 29415, 38849, 81363, 116547, 135605, 194245, 406815, 582735, 1437413, 4312239, 7187065, 21561195]

約数ペア:

[(1, 21561195), (3, 7187065), (5, 4312239), (15, 1437413), (37, 582735), (53, 406815), (111, 194245), (159, 135605), (185, 116547), (265, 81363), (555, 38849), (733, 29415), (795, 27121), (1961, 10995), (2199, 9805), (3665, 5883)]