21712744

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{677}}^1$

素因数の和:913

約数の個数: 32

約数和(自身を含む): 43120800

約数和(自身を除く): 21408056

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 211, 422, 677, 844, 1354, 1688, 2708, 4009, 5416, 8018, 12863, 16036, 25726, 32072, 51452, 102904, 142847, 285694, 571388, 1142776, 2714093, 5428186, 10856372, 21712744]

約数ペア:

[(1, 21712744), (2, 10856372), (4, 5428186), (8, 2714093), (19, 1142776), (38, 571388), (76, 285694), (152, 142847), (211, 102904), (422, 51452), (677, 32072), (844, 25726), (1354, 16036), (1688, 12863), (2708, 8018), (4009, 5416)]