19890052

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1031}}^1$

素因数の和:1108

約数の個数: 48

約数和(自身を含む): 43690752

約数和(自身を除く): 23800700

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 53, 91, 106, 182, 212, 364, 371, 689, 742, 1031, 1378, 1484, 2062, 2756, 4124, 4823, 7217, 9646, 13403, 14434, 19292, 26806, 28868, 53612, 54643, 93821, 109286, 187642, 218572, 375284, 382501, 710359, 765002, 1420718, 1530004, 2841436, 4972513, 9945026, 19890052]

約数ペア:

[(1, 19890052), (2, 9945026), (4, 4972513), (7, 2841436), (13, 1530004), (14, 1420718), (26, 765002), (28, 710359), (52, 382501), (53, 375284), (91, 218572), (106, 187642), (182, 109286), (212, 93821), (364, 54643), (371, 53612), (689, 28868), (742, 26806), (1031, 19292), (1378, 14434), (1484, 13403), (2062, 9646), (2756, 7217), (4124, 4823)]