21961895

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{353}}^1\times {\mathrm{541}}^1$

素因数の和:922

約数の個数: 16

約数和(自身を含む): 27628992

約数和(自身を除く): 5667097

約数列:

[1, 5, 23, 115, 353, 541, 1765, 2705, 8119, 12443, 40595, 62215, 190973, 954865, 4392379, 21961895]

約数ペア:

[(1, 21961895), (5, 4392379), (23, 954865), (115, 190973), (353, 62215), (541, 40595), (1765, 12443), (2705, 8119)]