28684908

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1997}}^1$

素因数の和:2036

約数の個数: 96

約数和(自身を含む): 89510400

約数和(自身を除く): 60825492

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 27, 28, 36, 38, 42, 54, 57, 63, 76, 84, 108, 114, 126, 133, 171, 189, 228, 252, 266, 342, 378, 399, 513, 532, 684, 756, 798, 1026, 1197, 1596, 1997, 2052, 2394, 3591, 3994, 4788, 5991, 7182, 7988, 11982, 13979, 14364, 17973, 23964, 27958, 35946, 37943, 41937, 53919, 55916, 71892, 75886, 83874, 107838, 113829, 125811, 151772, 167748, 215676, 227658, 251622, 265601, 341487, 377433, 455316, 503244, 531202, 682974, 754866, 796803, 1024461, 1062404, 1365948, 1509732, 1593606, 2048922, 2390409, 3187212, 4097844, 4780818, 7171227, 9561636, 14342454, 28684908]

約数ペア:

[(1, 28684908), (2, 14342454), (3, 9561636), (4, 7171227), (6, 4780818), (7, 4097844), (9, 3187212), (12, 2390409), (14, 2048922), (18, 1593606), (19, 1509732), (21, 1365948), (27, 1062404), (28, 1024461), (36, 796803), (38, 754866), (42, 682974), (54, 531202), (57, 503244), (63, 455316), (76, 377433), (84, 341487), (108, 265601), (114, 251622), (126, 227658), (133, 215676), (171, 167748), (189, 151772), (228, 125811), (252, 113829), (266, 107838), (342, 83874), (378, 75886), (399, 71892), (513, 55916), (532, 53919), (684, 41937), (756, 37943), (798, 35946), (1026, 27958), (1197, 23964), (1596, 17973), (1997, 14364), (2052, 13979), (2394, 11982), (3591, 7988), (3994, 7182), (4788, 5991)]