21055743

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{2087}}^1$

素因数の和:2171

約数の個数: 24

約数和(自身を含む): 32572800

約数和(自身を除く): 11517057

約数列:

[1, 3, 9, 19, 57, 59, 171, 177, 531, 1121, 2087, 3363, 6261, 10089, 18783, 39653, 118959, 123133, 356877, 369399, 1108197, 2339527, 7018581, 21055743]

約数ペア:

[(1, 21055743), (3, 7018581), (9, 2339527), (19, 1108197), (57, 369399), (59, 356877), (171, 123133), (177, 118959), (531, 39653), (1121, 18783), (2087, 10089), (3363, 6261)]