21543840

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{4987}}^1$

素因数の和:5011

約数の個数: 96

約数和(自身を含む): 75418560

約数和(自身を除く): 53874720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 216, 240, 270, 288, 360, 432, 480, 540, 720, 864, 1080, 1440, 2160, 4320, 4987, 9974, 14961, 19948, 24935, 29922, 39896, 44883, 49870, 59844, 74805, 79792, 89766, 99740, 119688, 134649, 149610, 159584, 179532, 199480, 224415, 239376, 269298, 299220, 359064, 398960, 448830, 478752, 538596, 598440, 673245, 718128, 797920, 897660, 1077192, 1196880, 1346490, 1436256, 1795320, 2154384, 2393760, 2692980, 3590640, 4308768, 5385960, 7181280, 10771920, 21543840]

約数ペア:

[(1, 21543840), (2, 10771920), (3, 7181280), (4, 5385960), (5, 4308768), (6, 3590640), (8, 2692980), (9, 2393760), (10, 2154384), (12, 1795320), (15, 1436256), (16, 1346490), (18, 1196880), (20, 1077192), (24, 897660), (27, 797920), (30, 718128), (32, 673245), (36, 598440), (40, 538596), (45, 478752), (48, 448830), (54, 398960), (60, 359064), (72, 299220), (80, 269298), (90, 239376), (96, 224415), (108, 199480), (120, 179532), (135, 159584), (144, 149610), (160, 134649), (180, 119688), (216, 99740), (240, 89766), (270, 79792), (288, 74805), (360, 59844), (432, 49870), (480, 44883), (540, 39896), (720, 29922), (864, 24935), (1080, 19948), (1440, 14961), (2160, 9974), (4320, 4987)]