20572706

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:207

約数の個数: 64

約数和(自身を含む): 41472000

約数和(自身を除く): 20899294

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 77, 79, 89, 133, 154, 158, 178, 209, 266, 418, 553, 623, 869, 979, 1106, 1246, 1463, 1501, 1691, 1738, 1958, 2926, 3002, 3382, 6083, 6853, 7031, 10507, 11837, 12166, 13706, 14062, 16511, 18601, 21014, 23674, 33022, 37202, 49217, 77341, 98434, 115577, 130207, 133589, 154682, 231154, 260414, 267178, 541387, 935123, 1082774, 1469479, 1870246, 2938958, 10286353, 20572706]

約数ペア:

[(1, 20572706), (2, 10286353), (7, 2938958), (11, 1870246), (14, 1469479), (19, 1082774), (22, 935123), (38, 541387), (77, 267178), (79, 260414), (89, 231154), (133, 154682), (154, 133589), (158, 130207), (178, 115577), (209, 98434), (266, 77341), (418, 49217), (553, 37202), (623, 33022), (869, 23674), (979, 21014), (1106, 18601), (1246, 16511), (1463, 14062), (1501, 13706), (1691, 12166), (1738, 11837), (1958, 10507), (2926, 7031), (3002, 6853), (3382, 6083)]