18948681

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{859}}^1$

素因数の和:930

約数の個数: 32

約数和(自身を含む): 30272000

約数和(自身を除く): 11323319

約数列:

[1, 3, 9, 19, 27, 43, 57, 129, 171, 387, 513, 817, 859, 1161, 2451, 2577, 7353, 7731, 16321, 22059, 23193, 36937, 48963, 110811, 146889, 332433, 440667, 701803, 997299, 2105409, 6316227, 18948681]

約数ペア:

[(1, 18948681), (3, 6316227), (9, 2105409), (19, 997299), (27, 701803), (43, 440667), (57, 332433), (129, 146889), (171, 110811), (387, 48963), (513, 36937), (817, 23193), (859, 22059), (1161, 16321), (2451, 7731), (2577, 7353)]