21482220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21061}}^1$

素因数の和:21090

約数の個数: 48

約数和(自身を含む): 63691488

約数和(自身を除く): 42209268

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 21061, 42122, 63183, 84244, 105305, 126366, 210610, 252732, 315915, 358037, 421220, 631830, 716074, 1074111, 1263660, 1432148, 1790185, 2148222, 3580370, 4296444, 5370555, 7160740, 10741110, 21482220]

約数ペア:

[(1, 21482220), (2, 10741110), (3, 7160740), (4, 5370555), (5, 4296444), (6, 3580370), (10, 2148222), (12, 1790185), (15, 1432148), (17, 1263660), (20, 1074111), (30, 716074), (34, 631830), (51, 421220), (60, 358037), (68, 315915), (85, 252732), (102, 210610), (170, 126366), (204, 105305), (255, 84244), (340, 63183), (510, 42122), (1020, 21061)]