19389896

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{113}}^1\times {\mathrm{241}}^1$

素因数の和:449

約数の個数: 32

約数和(自身を含む): 37243800

約数和(自身を除く): 17853904

約数列:

[1, 2, 4, 8, 89, 113, 178, 226, 241, 356, 452, 482, 712, 904, 964, 1928, 10057, 20114, 21449, 27233, 40228, 42898, 54466, 80456, 85796, 108932, 171592, 217864, 2423737, 4847474, 9694948, 19389896]

約数ペア:

[(1, 19389896), (2, 9694948), (4, 4847474), (8, 2423737), (89, 217864), (113, 171592), (178, 108932), (226, 85796), (241, 80456), (356, 54466), (452, 42898), (482, 40228), (712, 27233), (904, 21449), (964, 20114), (1928, 10057)]