220789857

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1\times {\mathrm{293}}^1$

素因数の和:549

約数の個数: 32

約数和(自身を含む): 314754048

約数和(自身を除く): 93964191

約数列:

[1, 3, 23, 67, 69, 163, 201, 293, 489, 879, 1541, 3749, 4623, 6739, 10921, 11247, 19631, 20217, 32763, 47759, 58893, 143277, 251183, 451513, 753549, 1098457, 1354539, 3199853, 3295371, 9599559, 73596619, 220789857]

約数ペア:

[(1, 220789857), (3, 73596619), (23, 9599559), (67, 3295371), (69, 3199853), (163, 1354539), (201, 1098457), (293, 753549), (489, 451513), (879, 251183), (1541, 143277), (3749, 58893), (4623, 47759), (6739, 32763), (10921, 20217), (11247, 19631)]