21612177

素因数分解:

$3^5\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:216

約数の個数: 48

約数和(自身を含む): 35409920

約数和(自身を除く): 13797743

約数列:

[1, 3, 9, 19, 27, 31, 57, 81, 93, 151, 171, 243, 279, 453, 513, 589, 837, 1359, 1539, 1767, 2511, 2869, 4077, 4617, 4681, 5301, 7533, 8607, 12231, 14043, 15903, 25821, 36693, 42129, 47709, 77463, 88939, 126387, 143127, 232389, 266817, 379161, 697167, 800451, 1137483, 2401353, 7204059, 21612177]

約数ペア:

[(1, 21612177), (3, 7204059), (9, 2401353), (19, 1137483), (27, 800451), (31, 697167), (57, 379161), (81, 266817), (93, 232389), (151, 143127), (171, 126387), (243, 88939), (279, 77463), (453, 47709), (513, 42129), (589, 36693), (837, 25821), (1359, 15903), (1539, 14043), (1767, 12231), (2511, 8607), (2869, 7533), (4077, 5301), (4617, 4681)]