19684868

素因数分解:

$2^2\times 7^2\times {\mathrm{67}}^1\times {\mathrm{1499}}^1$

素因数の和:1584

約数の個数: 36

約数和(自身を含む): 40698000

約数和(自身を除く): 21013132

約数列:

[1, 2, 4, 7, 14, 28, 49, 67, 98, 134, 196, 268, 469, 938, 1499, 1876, 2998, 3283, 5996, 6566, 10493, 13132, 20986, 41972, 73451, 100433, 146902, 200866, 293804, 401732, 703031, 1406062, 2812124, 4921217, 9842434, 19684868]

約数ペア:

[(1, 19684868), (2, 9842434), (4, 4921217), (7, 2812124), (14, 1406062), (28, 703031), (49, 401732), (67, 293804), (98, 200866), (134, 146902), (196, 100433), (268, 73451), (469, 41972), (938, 20986), (1499, 13132), (1876, 10493), (2998, 6566), (3283, 5996)]