20758868

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{21011}}^1$

素因数の和:21047

約数の個数: 24

約数和(自身を含む): 41183520

約数和(自身を除く): 20424652

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 21011, 42022, 84044, 273143, 399209, 546286, 798418, 1092572, 1596836, 5189717, 10379434, 20758868]

約数ペア:

[(1, 20758868), (2, 10379434), (4, 5189717), (13, 1596836), (19, 1092572), (26, 798418), (38, 546286), (52, 399209), (76, 273143), (247, 84044), (494, 42022), (988, 21011)]