19927809

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{293}}^1$

素因数の和:542

約数の個数: 32

約数和(自身を含む): 32457600

約数和(自身を除く): 12529791

約数列:

[1, 3, 9, 11, 27, 33, 99, 229, 293, 297, 687, 879, 2061, 2519, 2637, 3223, 6183, 7557, 7911, 9669, 22671, 29007, 67097, 68013, 87021, 201291, 603873, 738067, 1811619, 2214201, 6642603, 19927809]

約数ペア:

[(1, 19927809), (3, 6642603), (9, 2214201), (11, 1811619), (27, 738067), (33, 603873), (99, 201291), (229, 87021), (293, 68013), (297, 67097), (687, 29007), (879, 22671), (2061, 9669), (2519, 7911), (2637, 7557), (3223, 6183)]