20070351

素因数分解:

$3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{641}}^1$

素因数の和:732

約数の個数: 36

約数和(自身を含む): 34251984

約数和(自身を除く): 14181633

約数列:

[1, 3, 7, 9, 21, 49, 63, 71, 147, 213, 441, 497, 639, 641, 1491, 1923, 3479, 4473, 4487, 5769, 10437, 13461, 31311, 31409, 40383, 45511, 94227, 136533, 282681, 318577, 409599, 955731, 2230039, 2867193, 6690117, 20070351]

約数ペア:

[(1, 20070351), (3, 6690117), (7, 2867193), (9, 2230039), (21, 955731), (49, 409599), (63, 318577), (71, 282681), (147, 136533), (213, 94227), (441, 45511), (497, 40383), (639, 31409), (641, 31311), (1491, 13461), (1923, 10437), (3479, 5769), (4473, 4487)]