28023879

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{641}}^1$

素因数の和:735

約数の個数: 32

約数和(自身を含む): 43142400

約数和(自身を除く): 15118521

約数列:

[1, 3, 13, 19, 39, 57, 59, 177, 247, 641, 741, 767, 1121, 1923, 2301, 3363, 8333, 12179, 14573, 24999, 36537, 37819, 43719, 113457, 158327, 474981, 491647, 718561, 1474941, 2155683, 9341293, 28023879]

約数ペア:

[(1, 28023879), (3, 9341293), (13, 2155683), (19, 1474941), (39, 718561), (57, 491647), (59, 474981), (177, 158327), (247, 113457), (641, 43719), (741, 37819), (767, 36537), (1121, 24999), (1923, 14573), (2301, 12179), (3363, 8333)]