20657833479

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{479}}^1\times {\mathrm{3931}}^1$

素因数の和:4492

約数の個数: 48

約数和(自身を含む): 31798241280

約数和(自身を除く): 11140407801

約数列:

[1, 3, 9, 23, 53, 69, 159, 207, 477, 479, 1219, 1437, 3657, 3931, 4311, 10971, 11017, 11793, 25387, 33051, 35379, 76161, 90413, 99153, 208343, 228483, 271239, 583901, 625029, 813717, 1751703, 1875087, 1882949, 4791889, 5255109, 5648847, 14375667, 16946541, 43127001, 43307827, 99796297, 129923481, 299388891, 389770443, 898166673, 2295314831, 6885944493, 20657833479]

約数ペア:

[(1, 20657833479), (3, 6885944493), (9, 2295314831), (23, 898166673), (53, 389770443), (69, 299388891), (159, 129923481), (207, 99796297), (477, 43307827), (479, 43127001), (1219, 16946541), (1437, 14375667), (3657, 5648847), (3931, 5255109), (4311, 4791889), (10971, 1882949), (11017, 1875087), (11793, 1751703), (25387, 813717), (33051, 625029), (35379, 583901), (76161, 271239), (90413, 228483), (99153, 208343)]