21168900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{547}}^1$

素因数の和:610

約数の個数: 108

約数和(自身を含む): 68019952

約数和(自身を除く): 46851052

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 43, 45, 50, 60, 75, 86, 90, 100, 129, 150, 172, 180, 215, 225, 258, 300, 387, 430, 450, 516, 547, 645, 774, 860, 900, 1075, 1094, 1290, 1548, 1641, 1935, 2150, 2188, 2580, 2735, 3225, 3282, 3870, 4300, 4923, 5470, 6450, 6564, 7740, 8205, 9675, 9846, 10940, 12900, 13675, 16410, 19350, 19692, 23521, 24615, 27350, 32820, 38700, 41025, 47042, 49230, 54700, 70563, 82050, 94084, 98460, 117605, 123075, 141126, 164100, 211689, 235210, 246150, 282252, 352815, 423378, 470420, 492300, 588025, 705630, 846756, 1058445, 1176050, 1411260, 1764075, 2116890, 2352100, 3528150, 4233780, 5292225, 7056300, 10584450, 21168900]

約数ペア:

[(1, 21168900), (2, 10584450), (3, 7056300), (4, 5292225), (5, 4233780), (6, 3528150), (9, 2352100), (10, 2116890), (12, 1764075), (15, 1411260), (18, 1176050), (20, 1058445), (25, 846756), (30, 705630), (36, 588025), (43, 492300), (45, 470420), (50, 423378), (60, 352815), (75, 282252), (86, 246150), (90, 235210), (100, 211689), (129, 164100), (150, 141126), (172, 123075), (180, 117605), (215, 98460), (225, 94084), (258, 82050), (300, 70563), (387, 54700), (430, 49230), (450, 47042), (516, 41025), (547, 38700), (645, 32820), (774, 27350), (860, 24615), (900, 23521), (1075, 19692), (1094, 19350), (1290, 16410), (1548, 13675), (1641, 12900), (1935, 10940), (2150, 9846), (2188, 9675), (2580, 8205), (2735, 7740), (3225, 6564), (3282, 6450), (3870, 5470), (4300, 4923)]