18903742

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{421}}^1$

素因数の和:604

約数の個数: 32

約数和(自身を含む): 33604704

約数和(自身を除く): 14700962

約数列:

[1, 2, 11, 13, 22, 26, 143, 157, 286, 314, 421, 842, 1727, 2041, 3454, 4082, 4631, 5473, 9262, 10946, 22451, 44902, 60203, 66097, 120406, 132194, 727067, 859261, 1454134, 1718522, 9451871, 18903742]

約数ペア:

[(1, 18903742), (2, 9451871), (11, 1718522), (13, 1454134), (22, 859261), (26, 727067), (143, 132194), (157, 120406), (286, 66097), (314, 60203), (421, 44902), (842, 22451), (1727, 10946), (2041, 9262), (3454, 5473), (4082, 4631)]