21439440

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2707}}^1$

素因数の和:2737

約数の個数: 120

約数和(自身を含む): 78575328

約数和(自身を除く): 57135888

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2640, 2707, 3960, 5414, 7920, 8121, 10828, 13535, 16242, 21656, 24363, 27070, 29777, 32484, 40605, 43312, 48726, 54140, 59554, 64968, 81210, 89331, 97452, 108280, 119108, 121815, 129936, 148885, 162420, 178662, 194904, 216560, 238216, 243630, 267993, 297770, 324840, 357324, 389808, 446655, 476432, 487260, 535986, 595540, 649680, 714648, 893310, 974520, 1071972, 1191080, 1339965, 1429296, 1786620, 1949040, 2143944, 2382160, 2679930, 3573240, 4287888, 5359860, 7146480, 10719720, 21439440]

約数ペア:

[(1, 21439440), (2, 10719720), (3, 7146480), (4, 5359860), (5, 4287888), (6, 3573240), (8, 2679930), (9, 2382160), (10, 2143944), (11, 1949040), (12, 1786620), (15, 1429296), (16, 1339965), (18, 1191080), (20, 1071972), (22, 974520), (24, 893310), (30, 714648), (33, 649680), (36, 595540), (40, 535986), (44, 487260), (45, 476432), (48, 446655), (55, 389808), (60, 357324), (66, 324840), (72, 297770), (80, 267993), (88, 243630), (90, 238216), (99, 216560), (110, 194904), (120, 178662), (132, 162420), (144, 148885), (165, 129936), (176, 121815), (180, 119108), (198, 108280), (220, 97452), (240, 89331), (264, 81210), (330, 64968), (360, 59554), (396, 54140), (440, 48726), (495, 43312), (528, 40605), (660, 32484), (720, 29777), (792, 27070), (880, 24363), (990, 21656), (1320, 16242), (1584, 13535), (1980, 10828), (2640, 8121), (2707, 7920), (3960, 5414)]