21935340

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{829}}^1$

素因数の和:861

約数の個数: 144

約数和(自身を含む): 79480800

約数和(自身を除く): 57545460

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 126, 135, 140, 147, 180, 189, 196, 210, 245, 252, 270, 294, 315, 378, 420, 441, 490, 540, 588, 630, 735, 756, 829, 882, 945, 980, 1260, 1323, 1470, 1658, 1764, 1890, 2205, 2487, 2646, 2940, 3316, 3780, 4145, 4410, 4974, 5292, 5803, 6615, 7461, 8290, 8820, 9948, 11606, 12435, 13230, 14922, 16580, 17409, 22383, 23212, 24870, 26460, 29015, 29844, 34818, 37305, 40621, 44766, 49740, 52227, 58030, 69636, 74610, 81242, 87045, 89532, 104454, 111915, 116060, 121863, 149220, 156681, 162484, 174090, 203105, 208908, 223830, 243726, 261135, 313362, 348180, 365589, 406210, 447660, 487452, 522270, 609315, 626724, 731178, 783405, 812420, 1044540, 1096767, 1218630, 1462356, 1566810, 1827945, 2193534, 2437260, 3133620, 3655890, 4387068, 5483835, 7311780, 10967670, 21935340]

約数ペア:

[(1, 21935340), (2, 10967670), (3, 7311780), (4, 5483835), (5, 4387068), (6, 3655890), (7, 3133620), (9, 2437260), (10, 2193534), (12, 1827945), (14, 1566810), (15, 1462356), (18, 1218630), (20, 1096767), (21, 1044540), (27, 812420), (28, 783405), (30, 731178), (35, 626724), (36, 609315), (42, 522270), (45, 487452), (49, 447660), (54, 406210), (60, 365589), (63, 348180), (70, 313362), (84, 261135), (90, 243726), (98, 223830), (105, 208908), (108, 203105), (126, 174090), (135, 162484), (140, 156681), (147, 149220), (180, 121863), (189, 116060), (196, 111915), (210, 104454), (245, 89532), (252, 87045), (270, 81242), (294, 74610), (315, 69636), (378, 58030), (420, 52227), (441, 49740), (490, 44766), (540, 40621), (588, 37305), (630, 34818), (735, 29844), (756, 29015), (829, 26460), (882, 24870), (945, 23212), (980, 22383), (1260, 17409), (1323, 16580), (1470, 14922), (1658, 13230), (1764, 12435), (1890, 11606), (2205, 9948), (2487, 8820), (2646, 8290), (2940, 7461), (3316, 6615), (3780, 5803), (4145, 5292), (4410, 4974)]