21445500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{29}}^2$

素因数の和:97

約数の個数: 144

約数和(自身を含む): 68481504

約数和(自身を除く): 47036004

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 25, 29, 30, 34, 50, 51, 58, 60, 68, 75, 85, 87, 100, 102, 116, 125, 145, 150, 170, 174, 204, 250, 255, 290, 300, 340, 348, 375, 425, 435, 493, 500, 510, 580, 725, 750, 841, 850, 870, 986, 1020, 1275, 1450, 1479, 1500, 1682, 1700, 1740, 1972, 2125, 2175, 2465, 2523, 2550, 2900, 2958, 3364, 3625, 4205, 4250, 4350, 4930, 5046, 5100, 5916, 6375, 7250, 7395, 8410, 8500, 8700, 9860, 10092, 10875, 12325, 12615, 12750, 14297, 14500, 14790, 16820, 21025, 21750, 24650, 25230, 25500, 28594, 29580, 36975, 42050, 42891, 43500, 49300, 50460, 57188, 61625, 63075, 71485, 73950, 84100, 85782, 105125, 123250, 126150, 142970, 147900, 171564, 184875, 210250, 214455, 246500, 252300, 285940, 315375, 357425, 369750, 420500, 428910, 630750, 714850, 739500, 857820, 1072275, 1261500, 1429700, 1787125, 2144550, 3574250, 4289100, 5361375, 7148500, 10722750, 21445500]

約数ペア:

[(1, 21445500), (2, 10722750), (3, 7148500), (4, 5361375), (5, 4289100), (6, 3574250), (10, 2144550), (12, 1787125), (15, 1429700), (17, 1261500), (20, 1072275), (25, 857820), (29, 739500), (30, 714850), (34, 630750), (50, 428910), (51, 420500), (58, 369750), (60, 357425), (68, 315375), (75, 285940), (85, 252300), (87, 246500), (100, 214455), (102, 210250), (116, 184875), (125, 171564), (145, 147900), (150, 142970), (170, 126150), (174, 123250), (204, 105125), (250, 85782), (255, 84100), (290, 73950), (300, 71485), (340, 63075), (348, 61625), (375, 57188), (425, 50460), (435, 49300), (493, 43500), (500, 42891), (510, 42050), (580, 36975), (725, 29580), (750, 28594), (841, 25500), (850, 25230), (870, 24650), (986, 21750), (1020, 21025), (1275, 16820), (1450, 14790), (1479, 14500), (1500, 14297), (1682, 12750), (1700, 12615), (1740, 12325), (1972, 10875), (2125, 10092), (2175, 9860), (2465, 8700), (2523, 8500), (2550, 8410), (2900, 7395), (2958, 7250), (3364, 6375), (3625, 5916), (4205, 5100), (4250, 5046), (4350, 4930)]