19865988

素因数分解:

$2^2\times 3^2\times {\mathrm{97}}^1\times {\mathrm{5689}}^1$

素因数の和:5796

約数の個数: 36

約数和(自身を含む): 50743420

約数和(自身を除く): 30877432

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 97, 194, 291, 388, 582, 873, 1164, 1746, 3492, 5689, 11378, 17067, 22756, 34134, 51201, 68268, 102402, 204804, 551833, 1103666, 1655499, 2207332, 3310998, 4966497, 6621996, 9932994, 19865988]

約数ペア:

[(1, 19865988), (2, 9932994), (3, 6621996), (4, 4966497), (6, 3310998), (9, 2207332), (12, 1655499), (18, 1103666), (36, 551833), (97, 204804), (194, 102402), (291, 68268), (388, 51201), (582, 34134), (873, 22756), (1164, 17067), (1746, 11378), (3492, 5689)]