28153706

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1997}}^1$

素因数の和:2078

約数の個数: 32

約数和(自身を含む): 51788160

約数和(自身を除く): 23634454

約数列:

[1, 2, 7, 14, 19, 38, 53, 106, 133, 266, 371, 742, 1007, 1997, 2014, 3994, 7049, 13979, 14098, 27958, 37943, 75886, 105841, 211682, 265601, 531202, 740887, 1481774, 2010979, 4021958, 14076853, 28153706]

約数ペア:

[(1, 28153706), (2, 14076853), (7, 4021958), (14, 2010979), (19, 1481774), (38, 740887), (53, 531202), (106, 265601), (133, 211682), (266, 105841), (371, 75886), (742, 37943), (1007, 27958), (1997, 14098), (2014, 13979), (3994, 7049)]