21742830

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1579}}^1$

素因数の和:1615

約数の個数: 80

約数和(自身を含む): 61942320

約数和(自身を除く): 40199490

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 30, 34, 45, 51, 54, 81, 85, 90, 102, 135, 153, 162, 170, 255, 270, 306, 405, 459, 510, 765, 810, 918, 1377, 1530, 1579, 2295, 2754, 3158, 4590, 4737, 6885, 7895, 9474, 13770, 14211, 15790, 23685, 26843, 28422, 42633, 47370, 53686, 71055, 80529, 85266, 127899, 134215, 142110, 161058, 213165, 241587, 255798, 268430, 402645, 426330, 483174, 639495, 724761, 805290, 1207935, 1278990, 1449522, 2174283, 2415870, 3623805, 4348566, 7247610, 10871415, 21742830]

約数ペア:

[(1, 21742830), (2, 10871415), (3, 7247610), (5, 4348566), (6, 3623805), (9, 2415870), (10, 2174283), (15, 1449522), (17, 1278990), (18, 1207935), (27, 805290), (30, 724761), (34, 639495), (45, 483174), (51, 426330), (54, 402645), (81, 268430), (85, 255798), (90, 241587), (102, 213165), (135, 161058), (153, 142110), (162, 134215), (170, 127899), (255, 85266), (270, 80529), (306, 71055), (405, 53686), (459, 47370), (510, 42633), (765, 28422), (810, 26843), (918, 23685), (1377, 15790), (1530, 14211), (1579, 13770), (2295, 9474), (2754, 7895), (3158, 6885), (4590, 4737)]