21332520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5387}}^1$

素因数の和:5415

約数の個数: 96

約数和(自身を含む): 75647520

約数和(自身を除く): 54315000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 132, 165, 180, 198, 220, 264, 330, 360, 396, 440, 495, 660, 792, 990, 1320, 1980, 3960, 5387, 10774, 16161, 21548, 26935, 32322, 43096, 48483, 53870, 59257, 64644, 80805, 96966, 107740, 118514, 129288, 161610, 177771, 193932, 215480, 237028, 242415, 296285, 323220, 355542, 387864, 474056, 484830, 533313, 592570, 646440, 711084, 888855, 969660, 1066626, 1185140, 1422168, 1777710, 1939320, 2133252, 2370280, 2666565, 3555420, 4266504, 5333130, 7110840, 10666260, 21332520]

約数ペア:

[(1, 21332520), (2, 10666260), (3, 7110840), (4, 5333130), (5, 4266504), (6, 3555420), (8, 2666565), (9, 2370280), (10, 2133252), (11, 1939320), (12, 1777710), (15, 1422168), (18, 1185140), (20, 1066626), (22, 969660), (24, 888855), (30, 711084), (33, 646440), (36, 592570), (40, 533313), (44, 484830), (45, 474056), (55, 387864), (60, 355542), (66, 323220), (72, 296285), (88, 242415), (90, 237028), (99, 215480), (110, 193932), (120, 177771), (132, 161610), (165, 129288), (180, 118514), (198, 107740), (220, 96966), (264, 80805), (330, 64644), (360, 59257), (396, 53870), (440, 48483), (495, 43096), (660, 32322), (792, 26935), (990, 21548), (1320, 16161), (1980, 10774), (3960, 5387)]