19948555

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{383}}^1\times {\mathrm{947}}^1$

素因数の和:1346

約数の個数: 16

約数和(自身を含む): 26210304

約数和(自身を除く): 6261749

約数列:

[1, 5, 11, 55, 383, 947, 1915, 4213, 4735, 10417, 21065, 52085, 362701, 1813505, 3989711, 19948555]

約数ペア:

[(1, 19948555), (5, 3989711), (11, 1813505), (55, 362701), (383, 52085), (947, 21065), (1915, 10417), (4213, 4735)]