21088556

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{8951}}^1$

素因数の和:9005

約数の個数: 24

約数和(自身を含む): 40104960

約数和(自身を除く): 19016404

約数列:

[1, 2, 4, 19, 31, 38, 62, 76, 124, 589, 1178, 2356, 8951, 17902, 35804, 170069, 277481, 340138, 554962, 680276, 1109924, 5272139, 10544278, 21088556]

約数ペア:

[(1, 21088556), (2, 10544278), (4, 5272139), (19, 1109924), (31, 680276), (38, 554962), (62, 340138), (76, 277481), (124, 170069), (589, 35804), (1178, 17902), (2356, 8951)]