20750553

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{293}}^1$

素因数の和:406

約数の個数: 32

約数和(自身を含む): 32081280

約数和(自身を除く): 11330727

約数列:

[1, 3, 9, 27, 43, 61, 129, 183, 293, 387, 549, 879, 1161, 1647, 2623, 2637, 7869, 7911, 12599, 17873, 23607, 37797, 53619, 70821, 113391, 160857, 340173, 482571, 768539, 2305617, 6916851, 20750553]

約数ペア:

[(1, 20750553), (3, 6916851), (9, 2305617), (27, 768539), (43, 482571), (61, 340173), (129, 160857), (183, 113391), (293, 70821), (387, 53619), (549, 37797), (879, 23607), (1161, 17873), (1647, 12599), (2623, 7911), (2637, 7869)]