21116880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{211}}^1$

素因数の和:369

約数の個数: 120

約数和(自身を含む): 71766240

約数和(自身を除く): 50649360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 139, 144, 180, 211, 240, 278, 360, 417, 422, 556, 633, 695, 720, 834, 844, 1055, 1112, 1251, 1266, 1390, 1668, 1688, 1899, 2085, 2110, 2224, 2502, 2532, 2780, 3165, 3336, 3376, 3798, 4170, 4220, 5004, 5064, 5560, 6255, 6330, 6672, 7596, 8340, 8440, 9495, 10008, 10128, 11120, 12510, 12660, 15192, 16680, 16880, 18990, 20016, 25020, 25320, 29329, 30384, 33360, 37980, 50040, 50640, 58658, 75960, 87987, 100080, 117316, 146645, 151920, 175974, 234632, 263961, 293290, 351948, 439935, 469264, 527922, 586580, 703896, 879870, 1055844, 1173160, 1319805, 1407792, 1759740, 2111688, 2346320, 2639610, 3519480, 4223376, 5279220, 7038960, 10558440, 21116880]

約数ペア:

[(1, 21116880), (2, 10558440), (3, 7038960), (4, 5279220), (5, 4223376), (6, 3519480), (8, 2639610), (9, 2346320), (10, 2111688), (12, 1759740), (15, 1407792), (16, 1319805), (18, 1173160), (20, 1055844), (24, 879870), (30, 703896), (36, 586580), (40, 527922), (45, 469264), (48, 439935), (60, 351948), (72, 293290), (80, 263961), (90, 234632), (120, 175974), (139, 151920), (144, 146645), (180, 117316), (211, 100080), (240, 87987), (278, 75960), (360, 58658), (417, 50640), (422, 50040), (556, 37980), (633, 33360), (695, 30384), (720, 29329), (834, 25320), (844, 25020), (1055, 20016), (1112, 18990), (1251, 16880), (1266, 16680), (1390, 15192), (1668, 12660), (1688, 12510), (1899, 11120), (2085, 10128), (2110, 10008), (2224, 9495), (2502, 8440), (2532, 8340), (2780, 7596), (3165, 6672), (3336, 6330), (3376, 6255), (3798, 5560), (4170, 5064), (4220, 5004)]