20663784

素因数分解:

$2^3\times 3^2\times {\mathrm{109}}^1\times {\mathrm{2633}}^1$

素因数の和:2754

約数の個数: 48

約数和(自身を含む): 56499300

約数和(自身を除く): 35835516

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 109, 218, 327, 436, 654, 872, 981, 1308, 1962, 2616, 2633, 3924, 5266, 7848, 7899, 10532, 15798, 21064, 23697, 31596, 47394, 63192, 94788, 189576, 286997, 573994, 860991, 1147988, 1721982, 2295976, 2582973, 3443964, 5165946, 6887928, 10331892, 20663784]

約数ペア:

[(1, 20663784), (2, 10331892), (3, 6887928), (4, 5165946), (6, 3443964), (8, 2582973), (9, 2295976), (12, 1721982), (18, 1147988), (24, 860991), (36, 573994), (72, 286997), (109, 189576), (218, 94788), (327, 63192), (436, 47394), (654, 31596), (872, 23697), (981, 21064), (1308, 15798), (1962, 10532), (2616, 7899), (2633, 7848), (3924, 5266)]