21167883261

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{16481}}^1$

素因数の和:16579

約数の個数: 96

約数和(自身を含む): 39082118400

約数和(自身を除く): 17914235139

約数列:

[1, 3, 7, 9, 19, 21, 29, 37, 57, 63, 87, 111, 133, 171, 203, 259, 261, 333, 399, 551, 609, 703, 777, 1073, 1197, 1653, 1827, 2109, 2331, 3219, 3857, 4921, 4959, 6327, 7511, 9657, 11571, 14763, 16481, 20387, 22533, 34713, 44289, 49443, 61161, 67599, 115367, 142709, 148329, 183483, 313139, 346101, 428127, 477949, 609797, 939417, 1038303, 1284381, 1433847, 1829391, 2191973, 2818251, 3345643, 4268579, 4301541, 5488173, 6575919, 9081031, 10036929, 11586143, 12805737, 17684113, 19727757, 27243093, 30110787, 34758429, 38417211, 53052339, 63567217, 81103001, 81729279, 104275287, 123788791, 159157017, 190701651, 243309003, 335998147, 371366373, 572104953, 729927009, 1007994441, 1114099119, 2351987029, 3023983323, 7055961087, 21167883261]

約数ペア:

[(1, 21167883261), (3, 7055961087), (7, 3023983323), (9, 2351987029), (19, 1114099119), (21, 1007994441), (29, 729927009), (37, 572104953), (57, 371366373), (63, 335998147), (87, 243309003), (111, 190701651), (133, 159157017), (171, 123788791), (203, 104275287), (259, 81729279), (261, 81103001), (333, 63567217), (399, 53052339), (551, 38417211), (609, 34758429), (703, 30110787), (777, 27243093), (1073, 19727757), (1197, 17684113), (1653, 12805737), (1827, 11586143), (2109, 10036929), (2331, 9081031), (3219, 6575919), (3857, 5488173), (4921, 4301541), (4959, 4268579), (6327, 3345643), (7511, 2818251), (9657, 2191973), (11571, 1829391), (14763, 1433847), (16481, 1284381), (20387, 1038303), (22533, 939417), (34713, 609797), (44289, 477949), (49443, 428127), (61161, 346101), (67599, 313139), (115367, 183483), (142709, 148329)]