21910875

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{491}}^1$

素因数の和:533

約数の個数: 64

約数和(自身を含む): 44209152

約数和(自身を除く): 22298277

約数列:

[1, 3, 5, 7, 15, 17, 21, 25, 35, 51, 75, 85, 105, 119, 125, 175, 255, 357, 375, 425, 491, 525, 595, 875, 1275, 1473, 1785, 2125, 2455, 2625, 2975, 3437, 6375, 7365, 8347, 8925, 10311, 12275, 14875, 17185, 25041, 36825, 41735, 44625, 51555, 58429, 61375, 85925, 125205, 175287, 184125, 208675, 257775, 292145, 429625, 626025, 876435, 1043375, 1288875, 1460725, 3130125, 4382175, 7303625, 21910875]

約数ペア:

[(1, 21910875), (3, 7303625), (5, 4382175), (7, 3130125), (15, 1460725), (17, 1288875), (21, 1043375), (25, 876435), (35, 626025), (51, 429625), (75, 292145), (85, 257775), (105, 208675), (119, 184125), (125, 175287), (175, 125205), (255, 85925), (357, 61375), (375, 58429), (425, 51555), (491, 44625), (525, 41735), (595, 36825), (875, 25041), (1275, 17185), (1473, 14875), (1785, 12275), (2125, 10311), (2455, 8925), (2625, 8347), (2975, 7365), (3437, 6375)]