28728931

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{269}}^1$

素因数の和:379

約数の個数: 32

約数和(自身を含む): 38361600

約数和(自身を除く): 9632669

約数列:

[1, 7, 11, 19, 73, 77, 133, 209, 269, 511, 803, 1387, 1463, 1883, 2959, 5111, 5621, 9709, 15257, 19637, 20713, 35777, 56221, 106799, 137459, 216007, 373103, 393547, 1512049, 2611721, 4104133, 28728931]

約数ペア:

[(1, 28728931), (7, 4104133), (11, 2611721), (19, 1512049), (73, 393547), (77, 373103), (133, 216007), (209, 137459), (269, 106799), (511, 56221), (803, 35777), (1387, 20713), (1463, 19637), (1883, 15257), (2959, 9709), (5111, 5621)]