21070147275

素因数分解:

$3^5\times 5^2\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{1021}}^1$

素因数の和:1168

約数の個数: 144

約数和(自身を含む): 40593512960

約数和(自身を除く): 19523365685

約数列:

[1, 3, 5, 9, 15, 25, 27, 43, 45, 75, 79, 81, 129, 135, 215, 225, 237, 243, 387, 395, 405, 645, 675, 711, 1021, 1075, 1161, 1185, 1215, 1935, 1975, 2025, 2133, 3063, 3225, 3397, 3483, 3555, 5105, 5805, 5925, 6075, 6399, 9189, 9675, 10191, 10449, 10665, 15315, 16985, 17415, 17775, 19197, 25525, 27567, 29025, 30573, 31995, 43903, 45945, 50955, 52245, 53325, 76575, 80659, 82701, 84925, 87075, 91719, 95985, 131709, 137835, 152865, 159975, 219515, 229725, 241977, 248103, 254775, 261225, 275157, 395127, 403295, 413505, 458595, 479925, 658545, 689175, 725931, 764325, 825471, 1097575, 1185381, 1209885, 1240515, 1375785, 1975635, 2016475, 2067525, 2177793, 2292975, 3292725, 3468337, 3556143, 3629655, 4127355, 5926905, 6049425, 6202575, 6533379, 6878925, 9878175, 10405011, 10668429, 10888965, 17341685, 17780715, 18148275, 19600137, 20636775, 29634525, 31215033, 32666895, 52025055, 53342145, 54444825, 86708425, 88903575, 93645099, 98000685, 156075165, 163334475, 260125275, 266710725, 280935297, 468225495, 490003425, 780375825, 842805891, 1404676485, 2341127475, 4214029455, 7023382425, 21070147275]

約数ペア:

[(1, 21070147275), (3, 7023382425), (5, 4214029455), (9, 2341127475), (15, 1404676485), (25, 842805891), (27, 780375825), (43, 490003425), (45, 468225495), (75, 280935297), (79, 266710725), (81, 260125275), (129, 163334475), (135, 156075165), (215, 98000685), (225, 93645099), (237, 88903575), (243, 86708425), (387, 54444825), (395, 53342145), (405, 52025055), (645, 32666895), (675, 31215033), (711, 29634525), (1021, 20636775), (1075, 19600137), (1161, 18148275), (1185, 17780715), (1215, 17341685), (1935, 10888965), (1975, 10668429), (2025, 10405011), (2133, 9878175), (3063, 6878925), (3225, 6533379), (3397, 6202575), (3483, 6049425), (3555, 5926905), (5105, 4127355), (5805, 3629655), (5925, 3556143), (6075, 3468337), (6399, 3292725), (9189, 2292975), (9675, 2177793), (10191, 2067525), (10449, 2016475), (10665, 1975635), (15315, 1375785), (16985, 1240515), (17415, 1209885), (17775, 1185381), (19197, 1097575), (25525, 825471), (27567, 764325), (29025, 725931), (30573, 689175), (31995, 658545), (43903, 479925), (45945, 458595), (50955, 413505), (52245, 403295), (53325, 395127), (76575, 275157), (80659, 261225), (82701, 254775), (84925, 248103), (87075, 241977), (91719, 229725), (95985, 219515), (131709, 159975), (137835, 152865)]