21695435

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1$

素因数の和:227

約数の個数: 32

約数和(自身を含む): 28892160

約数和(自身を除く): 7196725

約数列:

[1, 5, 19, 43, 47, 95, 113, 215, 235, 565, 817, 893, 2021, 2147, 4085, 4465, 4859, 5311, 10105, 10735, 24295, 26555, 38399, 92321, 100909, 191995, 228373, 461605, 504545, 1141865, 4339087, 21695435]

約数ペア:

[(1, 21695435), (5, 4339087), (19, 1141865), (43, 504545), (47, 461605), (95, 228373), (113, 191995), (215, 100909), (235, 92321), (565, 38399), (817, 26555), (893, 24295), (2021, 10735), (2147, 10105), (4085, 5311), (4465, 4859)]