28225827

素因数分解:

$3^4\times 7^1\times {\mathrm{67}}^1\times {\mathrm{743}}^1$

素因数の和:829

約数の個数: 40

約数和(自身を含む): 48973056

約数和(自身を除く): 20747229

約数列:

[1, 3, 7, 9, 21, 27, 63, 67, 81, 189, 201, 469, 567, 603, 743, 1407, 1809, 2229, 4221, 5201, 5427, 6687, 12663, 15603, 20061, 37989, 46809, 49781, 60183, 140427, 149343, 348467, 421281, 448029, 1045401, 1344087, 3136203, 4032261, 9408609, 28225827]

約数ペア:

[(1, 28225827), (3, 9408609), (7, 4032261), (9, 3136203), (21, 1344087), (27, 1045401), (63, 448029), (67, 421281), (81, 348467), (189, 149343), (201, 140427), (469, 60183), (567, 49781), (603, 46809), (743, 37989), (1407, 20061), (1809, 15603), (2229, 12663), (4221, 6687), (5201, 5427)]