28184247

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{11471}}^1$

素因数の和:11500

約数の個数: 32

約数和(自身を含む): 51394560

約数和(自身を除く): 23210313

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 11471, 34413, 80297, 103239, 149123, 240891, 309717, 447369, 722673, 1043861, 1342107, 2168019, 3131583, 4026321, 9394749, 28184247]

約数ペア:

[(1, 28184247), (3, 9394749), (7, 4026321), (9, 3131583), (13, 2168019), (21, 1342107), (27, 1043861), (39, 722673), (63, 447369), (91, 309717), (117, 240891), (189, 149123), (273, 103239), (351, 80297), (819, 34413), (2457, 11471)]