19788786

素因数分解:

$2^1\times 3^4\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1$

素因数の和:197

約数の個数: 80

約数和(自身を含む): 47672064

約数和(自身を除く): 27883278

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 47, 54, 69, 81, 94, 113, 138, 141, 162, 207, 226, 282, 339, 414, 423, 621, 678, 846, 1017, 1081, 1242, 1269, 1863, 2034, 2162, 2538, 2599, 3051, 3243, 3726, 3807, 5198, 5311, 6102, 6486, 7614, 7797, 9153, 9729, 10622, 15594, 15933, 18306, 19458, 23391, 29187, 31866, 46782, 47799, 58374, 70173, 87561, 95598, 122153, 140346, 143397, 175122, 210519, 244306, 286794, 366459, 421038, 430191, 732918, 860382, 1099377, 2198754, 3298131, 6596262, 9894393, 19788786]

約数ペア:

[(1, 19788786), (2, 9894393), (3, 6596262), (6, 3298131), (9, 2198754), (18, 1099377), (23, 860382), (27, 732918), (46, 430191), (47, 421038), (54, 366459), (69, 286794), (81, 244306), (94, 210519), (113, 175122), (138, 143397), (141, 140346), (162, 122153), (207, 95598), (226, 87561), (282, 70173), (339, 58374), (414, 47799), (423, 46782), (621, 31866), (678, 29187), (846, 23391), (1017, 19458), (1081, 18306), (1242, 15933), (1269, 15594), (1863, 10622), (2034, 9729), (2162, 9153), (2538, 7797), (2599, 7614), (3051, 6486), (3243, 6102), (3726, 5311), (3807, 5198)]