21643380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{643}}^1$

素因数の和:686

約数の個数: 144

約数和(自身を含む): 75950784

約数和(自身を除く): 54307404

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 17, 18, 20, 22, 30, 33, 34, 36, 44, 45, 51, 55, 60, 66, 68, 85, 90, 99, 102, 110, 132, 153, 165, 170, 180, 187, 198, 204, 220, 255, 306, 330, 340, 374, 396, 495, 510, 561, 612, 643, 660, 748, 765, 935, 990, 1020, 1122, 1286, 1530, 1683, 1870, 1929, 1980, 2244, 2572, 2805, 3060, 3215, 3366, 3740, 3858, 5610, 5787, 6430, 6732, 7073, 7716, 8415, 9645, 10931, 11220, 11574, 12860, 14146, 16830, 19290, 21219, 21862, 23148, 28292, 28935, 32793, 33660, 35365, 38580, 42438, 43724, 54655, 57870, 63657, 65586, 70730, 84876, 98379, 106095, 109310, 115740, 120241, 127314, 131172, 141460, 163965, 196758, 212190, 218620, 240482, 254628, 318285, 327930, 360723, 393516, 424380, 480964, 491895, 601205, 636570, 655860, 721446, 983790, 1082169, 1202410, 1273140, 1442892, 1803615, 1967580, 2164338, 2404820, 3607230, 4328676, 5410845, 7214460, 10821690, 21643380]

約数ペア:

[(1, 21643380), (2, 10821690), (3, 7214460), (4, 5410845), (5, 4328676), (6, 3607230), (9, 2404820), (10, 2164338), (11, 1967580), (12, 1803615), (15, 1442892), (17, 1273140), (18, 1202410), (20, 1082169), (22, 983790), (30, 721446), (33, 655860), (34, 636570), (36, 601205), (44, 491895), (45, 480964), (51, 424380), (55, 393516), (60, 360723), (66, 327930), (68, 318285), (85, 254628), (90, 240482), (99, 218620), (102, 212190), (110, 196758), (132, 163965), (153, 141460), (165, 131172), (170, 127314), (180, 120241), (187, 115740), (198, 109310), (204, 106095), (220, 98379), (255, 84876), (306, 70730), (330, 65586), (340, 63657), (374, 57870), (396, 54655), (495, 43724), (510, 42438), (561, 38580), (612, 35365), (643, 33660), (660, 32793), (748, 28935), (765, 28292), (935, 23148), (990, 21862), (1020, 21219), (1122, 19290), (1286, 16830), (1530, 14146), (1683, 12860), (1870, 11574), (1929, 11220), (1980, 10931), (2244, 9645), (2572, 8415), (2805, 7716), (3060, 7073), (3215, 6732), (3366, 6430), (3740, 5787), (3858, 5610)]