21116040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{941}}^1$

素因数の和:983

約数の個数: 128

約数和(自身を含む): 73249920

約数和(自身を除く): 52133880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 17, 20, 22, 24, 30, 33, 34, 40, 44, 51, 55, 60, 66, 68, 85, 88, 102, 110, 120, 132, 136, 165, 170, 187, 204, 220, 255, 264, 330, 340, 374, 408, 440, 510, 561, 660, 680, 748, 935, 941, 1020, 1122, 1320, 1496, 1870, 1882, 2040, 2244, 2805, 2823, 3740, 3764, 4488, 4705, 5610, 5646, 7480, 7528, 9410, 10351, 11220, 11292, 14115, 15997, 18820, 20702, 22440, 22584, 28230, 31053, 31994, 37640, 41404, 47991, 51755, 56460, 62106, 63988, 79985, 82808, 95982, 103510, 112920, 124212, 127976, 155265, 159970, 175967, 191964, 207020, 239955, 248424, 310530, 319940, 351934, 383928, 414040, 479910, 527901, 621060, 639880, 703868, 879835, 959820, 1055802, 1242120, 1407736, 1759670, 1919640, 2111604, 2639505, 3519340, 4223208, 5279010, 7038680, 10558020, 21116040]

約数ペア:

[(1, 21116040), (2, 10558020), (3, 7038680), (4, 5279010), (5, 4223208), (6, 3519340), (8, 2639505), (10, 2111604), (11, 1919640), (12, 1759670), (15, 1407736), (17, 1242120), (20, 1055802), (22, 959820), (24, 879835), (30, 703868), (33, 639880), (34, 621060), (40, 527901), (44, 479910), (51, 414040), (55, 383928), (60, 351934), (66, 319940), (68, 310530), (85, 248424), (88, 239955), (102, 207020), (110, 191964), (120, 175967), (132, 159970), (136, 155265), (165, 127976), (170, 124212), (187, 112920), (204, 103510), (220, 95982), (255, 82808), (264, 79985), (330, 63988), (340, 62106), (374, 56460), (408, 51755), (440, 47991), (510, 41404), (561, 37640), (660, 31994), (680, 31053), (748, 28230), (935, 22584), (941, 22440), (1020, 20702), (1122, 18820), (1320, 15997), (1496, 14115), (1870, 11292), (1882, 11220), (2040, 10351), (2244, 9410), (2805, 7528), (2823, 7480), (3740, 5646), (3764, 5610), (4488, 4705)]