20168792919

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{233}}^1\times {\mathrm{787}}^1$

素因数の和:1149

約数の個数: 72

約数和(自身を含む): 32519004336

約数和(自身を除く): 12350211417

約数列:

[1, 3, 9, 11, 33, 99, 101, 121, 233, 303, 363, 699, 787, 909, 1089, 1111, 2097, 2361, 2563, 3333, 7083, 7689, 8657, 9999, 12221, 23067, 23533, 25971, 28193, 36663, 70599, 77913, 79487, 84579, 95227, 109989, 183371, 211797, 238461, 253737, 258863, 285681, 550113, 715383, 776589, 857043, 874357, 1650339, 2017081, 2329767, 2623071, 2847493, 6051243, 7869213, 8542479, 9617927, 18153729, 18520471, 22187891, 25627437, 28853781, 55561413, 66563673, 86561343, 166684239, 199691019, 203725181, 611175543, 1833526629, 2240976991, 6722930973, 20168792919]

約数ペア:

[(1, 20168792919), (3, 6722930973), (9, 2240976991), (11, 1833526629), (33, 611175543), (99, 203725181), (101, 199691019), (121, 166684239), (233, 86561343), (303, 66563673), (363, 55561413), (699, 28853781), (787, 25627437), (909, 22187891), (1089, 18520471), (1111, 18153729), (2097, 9617927), (2361, 8542479), (2563, 7869213), (3333, 6051243), (7083, 2847493), (7689, 2623071), (8657, 2329767), (9999, 2017081), (12221, 1650339), (23067, 874357), (23533, 857043), (25971, 776589), (28193, 715383), (36663, 550113), (70599, 285681), (77913, 258863), (79487, 253737), (84579, 238461), (95227, 211797), (109989, 183371)]