20210445

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^2\times {\mathrm{283}}^1$

素因数の和:343

約数の個数: 48

約数和(自身を含む): 37692480

約数和(自身を除く): 17482035

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 207, 283, 345, 529, 621, 849, 1035, 1415, 1587, 2547, 2645, 3105, 4245, 4761, 6509, 7641, 7935, 12735, 14283, 19527, 23805, 32545, 38205, 58581, 71415, 97635, 149707, 175743, 292905, 449121, 748535, 878715, 1347363, 2245605, 4042089, 6736815, 20210445]

約数ペア:

[(1, 20210445), (3, 6736815), (5, 4042089), (9, 2245605), (15, 1347363), (23, 878715), (27, 748535), (45, 449121), (69, 292905), (115, 175743), (135, 149707), (207, 97635), (283, 71415), (345, 58581), (529, 38205), (621, 32545), (849, 23805), (1035, 19527), (1415, 14283), (1587, 12735), (2547, 7935), (2645, 7641), (3105, 6509), (4245, 4761)]