20402811

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{191}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 35223552

約数和(自身を除く): 14820741

約数列:

[1, 3, 9, 11, 13, 33, 39, 83, 99, 117, 143, 191, 249, 429, 573, 747, 913, 1079, 1287, 1719, 2101, 2483, 2739, 3237, 6303, 7449, 8217, 9711, 11869, 15853, 18909, 22347, 27313, 35607, 47559, 81939, 106821, 142677, 174383, 206089, 245817, 523149, 618267, 1569447, 1854801, 2266979, 6800937, 20402811]

約数ペア:

[(1, 20402811), (3, 6800937), (9, 2266979), (11, 1854801), (13, 1569447), (33, 618267), (39, 523149), (83, 245817), (99, 206089), (117, 174383), (143, 142677), (191, 106821), (249, 81939), (429, 47559), (573, 35607), (747, 27313), (913, 22347), (1079, 18909), (1287, 15853), (1719, 11869), (2101, 9711), (2483, 8217), (2739, 7449), (3237, 6303)]