21053610

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{521}}^1$

素因数の和:983

約数の個数: 48

約数和(自身を含む): 54966600

約数和(自身を除く): 33912990

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 449, 521, 898, 1042, 1347, 1563, 2245, 2605, 2694, 3126, 4041, 4490, 4689, 5210, 6735, 7815, 8082, 9378, 13470, 15630, 20205, 23445, 40410, 46890, 233929, 467858, 701787, 1169645, 1403574, 2105361, 2339290, 3508935, 4210722, 7017870, 10526805, 21053610]

約数ペア:

[(1, 21053610), (2, 10526805), (3, 7017870), (5, 4210722), (6, 3508935), (9, 2339290), (10, 2105361), (15, 1403574), (18, 1169645), (30, 701787), (45, 467858), (90, 233929), (449, 46890), (521, 40410), (898, 23445), (1042, 20205), (1347, 15630), (1563, 13470), (2245, 9378), (2605, 8082), (2694, 7815), (3126, 6735), (4041, 5210), (4490, 4689)]