20811642

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{631}}^1$

素因数の和:898

約数の個数: 32

約数和(自身を含む): 43683840

約数和(自身を除く): 22872198

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 239, 478, 631, 717, 1262, 1434, 1893, 3786, 5497, 10994, 14513, 16491, 29026, 32982, 43539, 87078, 150809, 301618, 452427, 904854, 3468607, 6937214, 10405821, 20811642]

約数ペア:

[(1, 20811642), (2, 10405821), (3, 6937214), (6, 3468607), (23, 904854), (46, 452427), (69, 301618), (138, 150809), (239, 87078), (478, 43539), (631, 32982), (717, 29026), (1262, 16491), (1434, 14513), (1893, 10994), (3786, 5497)]