215507439

素因数分解:

$3^3\times 7^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:230

約数の個数: 96

約数和(自身を含む): 396446400

約数和(自身を除く): 180938961

約数列:

[1, 3, 7, 9, 21, 27, 29, 41, 49, 63, 87, 123, 137, 147, 189, 203, 261, 287, 369, 411, 441, 609, 783, 861, 959, 1107, 1189, 1233, 1323, 1421, 1827, 2009, 2583, 2877, 3567, 3699, 3973, 4263, 5481, 5617, 6027, 6713, 7749, 8323, 8631, 10701, 11919, 12789, 16851, 18081, 20139, 24969, 25893, 27811, 32103, 35757, 38367, 39319, 50553, 54243, 58261, 60417, 74907, 83433, 107271, 117957, 151659, 162893, 174783, 181251, 194677, 224721, 250299, 275233, 353871, 488679, 524349, 584031, 750897, 825699, 1061613, 1140251, 1466037, 1573047, 1752093, 2477097, 3420753, 4398111, 5256279, 7431291, 7981757, 10262259, 23945271, 30786777, 71835813, 215507439]

約数ペア:

[(1, 215507439), (3, 71835813), (7, 30786777), (9, 23945271), (21, 10262259), (27, 7981757), (29, 7431291), (41, 5256279), (49, 4398111), (63, 3420753), (87, 2477097), (123, 1752093), (137, 1573047), (147, 1466037), (189, 1140251), (203, 1061613), (261, 825699), (287, 750897), (369, 584031), (411, 524349), (441, 488679), (609, 353871), (783, 275233), (861, 250299), (959, 224721), (1107, 194677), (1189, 181251), (1233, 174783), (1323, 162893), (1421, 151659), (1827, 117957), (2009, 107271), (2583, 83433), (2877, 74907), (3567, 60417), (3699, 58261), (3973, 54243), (4263, 50553), (5481, 39319), (5617, 38367), (6027, 35757), (6713, 32103), (7749, 27811), (8323, 25893), (8631, 24969), (10701, 20139), (11919, 18081), (12789, 16851)]