21707595

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:87

約数の個数: 160

約数和(自身を含む): 52039680

約数和(自身を除く): 30332085

約数列:

[1, 3, 5, 7, 9, 13, 15, 19, 21, 27, 31, 35, 39, 45, 57, 63, 65, 81, 91, 93, 95, 105, 117, 133, 135, 155, 171, 189, 195, 217, 247, 273, 279, 285, 315, 351, 399, 403, 405, 455, 465, 513, 567, 585, 589, 651, 665, 741, 819, 837, 855, 945, 1053, 1085, 1197, 1209, 1235, 1365, 1395, 1539, 1729, 1755, 1767, 1953, 1995, 2015, 2223, 2457, 2511, 2565, 2821, 2835, 2945, 3255, 3591, 3627, 3705, 4095, 4123, 4185, 5187, 5265, 5301, 5859, 5985, 6045, 6669, 7371, 7657, 7695, 8463, 8645, 8835, 9765, 10773, 10881, 11115, 12285, 12369, 12555, 14105, 15561, 15903, 17577, 17955, 18135, 20007, 20615, 22971, 25389, 25935, 26505, 29295, 32643, 33345, 36855, 37107, 38285, 42315, 46683, 47709, 53599, 53865, 54405, 61845, 68913, 76167, 77805, 79515, 87885, 100035, 111321, 114855, 126945, 140049, 160797, 163215, 185535, 206739, 228501, 233415, 238545, 267995, 333963, 344565, 380835, 482391, 556605, 620217, 700245, 803985, 1033695, 1142505, 1447173, 1669815, 2411955, 3101085, 4341519, 7235865, 21707595]

約数ペア:

[(1, 21707595), (3, 7235865), (5, 4341519), (7, 3101085), (9, 2411955), (13, 1669815), (15, 1447173), (19, 1142505), (21, 1033695), (27, 803985), (31, 700245), (35, 620217), (39, 556605), (45, 482391), (57, 380835), (63, 344565), (65, 333963), (81, 267995), (91, 238545), (93, 233415), (95, 228501), (105, 206739), (117, 185535), (133, 163215), (135, 160797), (155, 140049), (171, 126945), (189, 114855), (195, 111321), (217, 100035), (247, 87885), (273, 79515), (279, 77805), (285, 76167), (315, 68913), (351, 61845), (399, 54405), (403, 53865), (405, 53599), (455, 47709), (465, 46683), (513, 42315), (567, 38285), (585, 37107), (589, 36855), (651, 33345), (665, 32643), (741, 29295), (819, 26505), (837, 25935), (855, 25389), (945, 22971), (1053, 20615), (1085, 20007), (1197, 18135), (1209, 17955), (1235, 17577), (1365, 15903), (1395, 15561), (1539, 14105), (1729, 12555), (1755, 12369), (1767, 12285), (1953, 11115), (1995, 10881), (2015, 10773), (2223, 9765), (2457, 8835), (2511, 8645), (2565, 8463), (2821, 7695), (2835, 7657), (2945, 7371), (3255, 6669), (3591, 6045), (3627, 5985), (3705, 5859), (4095, 5301), (4123, 5265), (4185, 5187)]