20549988

素因数分解:

$2^2\times 3^2\times {\mathrm{109}}^1\times {\mathrm{5237}}^1$

素因数の和:5356

約数の個数: 36

約数和(自身を含む): 52432380

約数和(自身を除く): 31882392

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 109, 218, 327, 436, 654, 981, 1308, 1962, 3924, 5237, 10474, 15711, 20948, 31422, 47133, 62844, 94266, 188532, 570833, 1141666, 1712499, 2283332, 3424998, 5137497, 6849996, 10274994, 20549988]

約数ペア:

[(1, 20549988), (2, 10274994), (3, 6849996), (4, 5137497), (6, 3424998), (9, 2283332), (12, 1712499), (18, 1141666), (36, 570833), (109, 188532), (218, 94266), (327, 62844), (436, 47133), (654, 31422), (981, 20948), (1308, 15711), (1962, 10474), (3924, 5237)]