28479879

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 46781280

約数和(自身を除く): 18301401

約数列:

[1, 3, 9, 17, 19, 51, 57, 97, 101, 153, 171, 291, 303, 323, 873, 909, 969, 1649, 1717, 1843, 1919, 2907, 4947, 5151, 5529, 5757, 9797, 14841, 15453, 16587, 17271, 29391, 31331, 32623, 88173, 93993, 97869, 166549, 186143, 281979, 293607, 499647, 558429, 1498941, 1675287, 3164431, 9493293, 28479879]

約数ペア:

[(1, 28479879), (3, 9493293), (9, 3164431), (17, 1675287), (19, 1498941), (51, 558429), (57, 499647), (97, 293607), (101, 281979), (153, 186143), (171, 166549), (291, 97869), (303, 93993), (323, 88173), (873, 32623), (909, 31331), (969, 29391), (1649, 17271), (1717, 16587), (1843, 15453), (1919, 14841), (2907, 9797), (4947, 5757), (5151, 5529)]