21630375

素因数分解:

$3^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1$

素因数の和:83

約数の個数: 128

約数和(自身を含む): 47174400

約数和(自身を除く): 25544025

約数列:

[1, 3, 5, 9, 13, 15, 17, 25, 27, 29, 39, 45, 51, 65, 75, 85, 87, 117, 125, 135, 145, 153, 195, 221, 225, 255, 261, 325, 351, 375, 377, 425, 435, 459, 493, 585, 663, 675, 725, 765, 783, 975, 1105, 1125, 1131, 1275, 1305, 1479, 1625, 1755, 1885, 1989, 2125, 2175, 2295, 2465, 2925, 3315, 3375, 3393, 3625, 3825, 3915, 4437, 4875, 5525, 5655, 5967, 6375, 6409, 6525, 7395, 8775, 9425, 9945, 10179, 10875, 11475, 12325, 13311, 14625, 16575, 16965, 19125, 19227, 19575, 22185, 27625, 28275, 29835, 32045, 32625, 36975, 43875, 47125, 49725, 50895, 57375, 57681, 61625, 66555, 82875, 84825, 96135, 97875, 110925, 141375, 149175, 160225, 173043, 184875, 248625, 254475, 288405, 332775, 424125, 480675, 554625, 745875, 801125, 865215, 1272375, 1442025, 1663875, 2403375, 4326075, 7210125, 21630375]

約数ペア:

[(1, 21630375), (3, 7210125), (5, 4326075), (9, 2403375), (13, 1663875), (15, 1442025), (17, 1272375), (25, 865215), (27, 801125), (29, 745875), (39, 554625), (45, 480675), (51, 424125), (65, 332775), (75, 288405), (85, 254475), (87, 248625), (117, 184875), (125, 173043), (135, 160225), (145, 149175), (153, 141375), (195, 110925), (221, 97875), (225, 96135), (255, 84825), (261, 82875), (325, 66555), (351, 61625), (375, 57681), (377, 57375), (425, 50895), (435, 49725), (459, 47125), (493, 43875), (585, 36975), (663, 32625), (675, 32045), (725, 29835), (765, 28275), (783, 27625), (975, 22185), (1105, 19575), (1125, 19227), (1131, 19125), (1275, 16965), (1305, 16575), (1479, 14625), (1625, 13311), (1755, 12325), (1885, 11475), (1989, 10875), (2125, 10179), (2175, 9945), (2295, 9425), (2465, 8775), (2925, 7395), (3315, 6525), (3375, 6409), (3393, 6375), (3625, 5967), (3825, 5655), (3915, 5525), (4437, 4875)]