21116828

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{8963}}^1$

素因数の和:9017

約数の個数: 24

約数和(自身を含む): 40158720

約数和(自身を除く): 19041892

約数列:

[1, 2, 4, 19, 31, 38, 62, 76, 124, 589, 1178, 2356, 8963, 17926, 35852, 170297, 277853, 340594, 555706, 681188, 1111412, 5279207, 10558414, 21116828]

約数ペア:

[(1, 21116828), (2, 10558414), (4, 5279207), (19, 1111412), (31, 681188), (38, 555706), (62, 340594), (76, 277853), (124, 170297), (589, 35852), (1178, 17926), (2356, 8963)]