20879144

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{18251}}^1$

素因数の和:18281

約数の個数: 32

約数和(自身を含む): 45995040

約数和(自身を除く): 25115896

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 18251, 36502, 73004, 146008, 200761, 237263, 401522, 474526, 803044, 949052, 1606088, 1898104, 2609893, 5219786, 10439572, 20879144]

約数ペア:

[(1, 20879144), (2, 10439572), (4, 5219786), (8, 2609893), (11, 1898104), (13, 1606088), (22, 949052), (26, 803044), (44, 474526), (52, 401522), (88, 237263), (104, 200761), (143, 146008), (286, 73004), (572, 36502), (1144, 18251)]