28152117

素因数分解:

$3^4\times 7^2\times {\mathrm{41}}^1\times {\mathrm{173}}^1$

素因数の和:240

約数の個数: 60

約数和(自身を含む): 50403276

約数和(自身を除く): 22251159

約数列:

[1, 3, 7, 9, 21, 27, 41, 49, 63, 81, 123, 147, 173, 189, 287, 369, 441, 519, 567, 861, 1107, 1211, 1323, 1557, 2009, 2583, 3321, 3633, 3969, 4671, 6027, 7093, 7749, 8477, 10899, 14013, 18081, 21279, 23247, 25431, 32697, 49651, 54243, 63837, 76293, 98091, 148953, 162729, 191511, 228879, 347557, 446859, 574533, 686637, 1042671, 1340577, 3128013, 4021731, 9384039, 28152117]

約数ペア:

[(1, 28152117), (3, 9384039), (7, 4021731), (9, 3128013), (21, 1340577), (27, 1042671), (41, 686637), (49, 574533), (63, 446859), (81, 347557), (123, 228879), (147, 191511), (173, 162729), (189, 148953), (287, 98091), (369, 76293), (441, 63837), (519, 54243), (567, 49651), (861, 32697), (1107, 25431), (1211, 23247), (1323, 21279), (1557, 18081), (2009, 14013), (2583, 10899), (3321, 8477), (3633, 7749), (3969, 7093), (4671, 6027)]