21152274

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{277}}^1$

素因数の和:395

約数の個数: 64

約数和(自身を含む): 50440320

約数和(自身を除く): 29288046

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 89, 143, 178, 267, 277, 286, 429, 534, 554, 831, 858, 979, 1157, 1662, 1958, 2314, 2937, 3047, 3471, 3601, 5874, 6094, 6942, 7202, 9141, 10803, 12727, 18282, 21606, 24653, 25454, 38181, 39611, 49306, 73959, 76362, 79222, 118833, 147918, 237666, 271183, 320489, 542366, 640978, 813549, 961467, 1627098, 1922934, 3525379, 7050758, 10576137, 21152274]

約数ペア:

[(1, 21152274), (2, 10576137), (3, 7050758), (6, 3525379), (11, 1922934), (13, 1627098), (22, 961467), (26, 813549), (33, 640978), (39, 542366), (66, 320489), (78, 271183), (89, 237666), (143, 147918), (178, 118833), (267, 79222), (277, 76362), (286, 73959), (429, 49306), (534, 39611), (554, 38181), (831, 25454), (858, 24653), (979, 21606), (1157, 18282), (1662, 12727), (1958, 10803), (2314, 9141), (2937, 7202), (3047, 6942), (3471, 6094), (3601, 5874)]