20996914185

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{763663}}^1$

素因数の和:763734

約数の個数: 48

約数和(自身を含む): 40028212224

約数和(自身を除く): 19031298039

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 47, 65, 117, 141, 195, 235, 423, 585, 611, 705, 1833, 2115, 3055, 5499, 9165, 27495, 763663, 2290989, 3818315, 6872967, 9927619, 11454945, 29782857, 34364835, 35892161, 49638095, 89348571, 107676483, 148914285, 179460805, 323029449, 446742855, 466598093, 538382415, 1399794279, 1615147245, 2332990465, 4199382837, 6998971395, 20996914185]

約数ペア:

[(1, 20996914185), (3, 6998971395), (5, 4199382837), (9, 2332990465), (13, 1615147245), (15, 1399794279), (39, 538382415), (45, 466598093), (47, 446742855), (65, 323029449), (117, 179460805), (141, 148914285), (195, 107676483), (235, 89348571), (423, 49638095), (585, 35892161), (611, 34364835), (705, 29782857), (1833, 11454945), (2115, 9927619), (3055, 6872967), (5499, 3818315), (9165, 2290989), (27495, 763663)]