19421956

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{53}}^1\times {\mathrm{317}}^1$

素因数の和:408

約数の個数: 36

約数和(自身を含む): 36902628

約数和(自身を除く): 17480672

約数列:

[1, 2, 4, 17, 34, 53, 68, 106, 212, 289, 317, 578, 634, 901, 1156, 1268, 1802, 3604, 5389, 10778, 15317, 16801, 21556, 30634, 33602, 61268, 67204, 91613, 183226, 285617, 366452, 571234, 1142468, 4855489, 9710978, 19421956]

約数ペア:

[(1, 19421956), (2, 9710978), (4, 4855489), (17, 1142468), (34, 571234), (53, 366452), (68, 285617), (106, 183226), (212, 91613), (289, 67204), (317, 61268), (578, 33602), (634, 30634), (901, 21556), (1156, 16801), (1268, 15317), (1802, 10778), (3604, 5389)]