20636451

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1$

素因数の和:118

約数の個数: 80

約数和(自身を含む): 37635840

約数和(自身を除く): 16999389

約数列:

[1, 3, 9, 11, 19, 23, 27, 33, 53, 57, 69, 81, 99, 159, 171, 207, 209, 253, 297, 437, 477, 513, 583, 621, 627, 759, 891, 1007, 1219, 1311, 1431, 1539, 1749, 1863, 1881, 2277, 3021, 3657, 3933, 4293, 4807, 5247, 5643, 6831, 9063, 10971, 11077, 11799, 13409, 14421, 15741, 16929, 20493, 23161, 27189, 32913, 33231, 35397, 40227, 43263, 47223, 69483, 81567, 98739, 99693, 120681, 129789, 208449, 254771, 299079, 362043, 389367, 625347, 764313, 897237, 1086129, 1876041, 2292939, 6878817, 20636451]

約数ペア:

[(1, 20636451), (3, 6878817), (9, 2292939), (11, 1876041), (19, 1086129), (23, 897237), (27, 764313), (33, 625347), (53, 389367), (57, 362043), (69, 299079), (81, 254771), (99, 208449), (159, 129789), (171, 120681), (207, 99693), (209, 98739), (253, 81567), (297, 69483), (437, 47223), (477, 43263), (513, 40227), (583, 35397), (621, 33231), (627, 32913), (759, 27189), (891, 23161), (1007, 20493), (1219, 16929), (1311, 15741), (1431, 14421), (1539, 13409), (1749, 11799), (1863, 11077), (1881, 10971), (2277, 9063), (3021, 6831), (3657, 5643), (3933, 5247), (4293, 4807)]