21699645

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{379}}^1$

素因数の和:745

約数の個数: 32

約数和(自身を含む): 38085120

約数和(自身を除く): 16385475

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 347, 379, 1041, 1137, 1735, 1895, 3817, 4169, 5205, 5685, 11451, 12507, 19085, 20845, 57255, 62535, 131513, 394539, 657565, 1446643, 1972695, 4339929, 7233215, 21699645]

約数ペア:

[(1, 21699645), (3, 7233215), (5, 4339929), (11, 1972695), (15, 1446643), (33, 657565), (55, 394539), (165, 131513), (347, 62535), (379, 57255), (1041, 20845), (1137, 19085), (1735, 12507), (1895, 11451), (3817, 5685), (4169, 5205)]