28111941

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{809}}^1$

素因数の和:848

約数の個数: 48

約数和(自身を含む): 49533120

約数和(自身を除く): 21421179

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 81, 99, 117, 143, 243, 297, 351, 429, 809, 891, 1053, 1287, 2427, 2673, 3159, 3861, 7281, 8899, 10517, 11583, 21843, 26697, 31551, 34749, 65529, 80091, 94653, 115687, 196587, 240273, 283959, 347061, 720819, 851877, 1041183, 2162457, 2555631, 3123549, 9370647, 28111941]

約数ペア:

[(1, 28111941), (3, 9370647), (9, 3123549), (11, 2555631), (13, 2162457), (27, 1041183), (33, 851877), (39, 720819), (81, 347061), (99, 283959), (117, 240273), (143, 196587), (243, 115687), (297, 94653), (351, 80091), (429, 65529), (809, 34749), (891, 31551), (1053, 26697), (1287, 21843), (2427, 11583), (2673, 10517), (3159, 8899), (3861, 7281)]