21695912

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^2\times {\mathrm{283}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 47950560

約数和(自身を除く): 26254648

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 74, 148, 259, 283, 296, 518, 566, 1036, 1132, 1369, 1981, 2072, 2264, 2738, 3962, 5476, 7924, 9583, 10471, 10952, 15848, 19166, 20942, 38332, 41884, 73297, 76664, 83768, 146594, 293188, 387427, 586376, 774854, 1549708, 2711989, 3099416, 5423978, 10847956, 21695912]

約数ペア:

[(1, 21695912), (2, 10847956), (4, 5423978), (7, 3099416), (8, 2711989), (14, 1549708), (28, 774854), (37, 586376), (56, 387427), (74, 293188), (148, 146594), (259, 83768), (283, 76664), (296, 73297), (518, 41884), (566, 38332), (1036, 20942), (1132, 19166), (1369, 15848), (1981, 10952), (2072, 10471), (2264, 9583), (2738, 7924), (3962, 5476)]