20258469

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:119

約数の個数: 96

約数和(自身を含む): 40255488

約数和(自身を除く): 19997019

約数列:

[1, 3, 7, 9, 11, 21, 23, 31, 33, 41, 63, 69, 77, 93, 99, 123, 161, 207, 217, 231, 253, 279, 287, 341, 369, 451, 483, 651, 693, 713, 759, 861, 943, 1023, 1271, 1353, 1449, 1771, 1953, 2139, 2277, 2387, 2583, 2829, 3069, 3157, 3813, 4059, 4991, 5313, 6417, 6601, 7161, 7843, 8487, 8897, 9471, 10373, 11439, 13981, 14973, 15939, 19803, 21483, 23529, 26691, 28413, 29233, 31119, 41943, 44919, 54901, 59409, 70587, 72611, 80073, 87699, 93357, 97867, 125829, 164703, 204631, 217833, 263097, 293601, 321563, 494109, 613893, 653499, 880803, 964689, 1841679, 2250941, 2894067, 6752823, 20258469]

約数ペア:

[(1, 20258469), (3, 6752823), (7, 2894067), (9, 2250941), (11, 1841679), (21, 964689), (23, 880803), (31, 653499), (33, 613893), (41, 494109), (63, 321563), (69, 293601), (77, 263097), (93, 217833), (99, 204631), (123, 164703), (161, 125829), (207, 97867), (217, 93357), (231, 87699), (253, 80073), (279, 72611), (287, 70587), (341, 59409), (369, 54901), (451, 44919), (483, 41943), (651, 31119), (693, 29233), (713, 28413), (759, 26691), (861, 23529), (943, 21483), (1023, 19803), (1271, 15939), (1353, 14973), (1449, 13981), (1771, 11439), (1953, 10373), (2139, 9471), (2277, 8897), (2387, 8487), (2583, 7843), (2829, 7161), (3069, 6601), (3157, 6417), (3813, 5313), (4059, 4991)]