28155699

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{167}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 48432384

約数和(自身を除く): 20276685

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 131, 143, 167, 393, 429, 501, 1179, 1287, 1441, 1503, 1703, 1837, 2171, 4323, 5109, 5511, 6513, 12969, 15327, 16533, 18733, 19539, 21877, 23881, 56199, 65631, 71643, 168597, 196893, 214929, 240647, 284401, 721941, 853203, 2165823, 2559609, 3128411, 9385233, 28155699]

約数ペア:

[(1, 28155699), (3, 9385233), (9, 3128411), (11, 2559609), (13, 2165823), (33, 853203), (39, 721941), (99, 284401), (117, 240647), (131, 214929), (143, 196893), (167, 168597), (393, 71643), (429, 65631), (501, 56199), (1179, 23881), (1287, 21877), (1441, 19539), (1503, 18733), (1703, 16533), (1837, 15327), (2171, 12969), (4323, 6513), (5109, 5511)]