21591564

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1997}}^1$

素因数の和:2074

約数の個数: 48

約数和(自身を含む): 54377568

約数和(自身を除く): 32786004

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 53, 68, 102, 106, 159, 204, 212, 318, 636, 901, 1802, 1997, 2703, 3604, 3994, 5406, 5991, 7988, 10812, 11982, 23964, 33949, 67898, 101847, 105841, 135796, 203694, 211682, 317523, 407388, 423364, 635046, 1270092, 1799297, 3598594, 5397891, 7197188, 10795782, 21591564]

約数ペア:

[(1, 21591564), (2, 10795782), (3, 7197188), (4, 5397891), (6, 3598594), (12, 1799297), (17, 1270092), (34, 635046), (51, 423364), (53, 407388), (68, 317523), (102, 211682), (106, 203694), (159, 135796), (204, 105841), (212, 101847), (318, 67898), (636, 33949), (901, 23964), (1802, 11982), (1997, 10812), (2703, 7988), (3604, 5991), (3994, 5406)]