21373812

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{347}}^1$

素因数の和:445

約数の個数: 72

約数和(自身を含む): 57002400

約数和(自身を除く): 35628588

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 59, 87, 116, 118, 174, 177, 236, 261, 347, 348, 354, 522, 531, 694, 708, 1041, 1044, 1062, 1388, 1711, 2082, 2124, 3123, 3422, 4164, 5133, 6246, 6844, 10063, 10266, 12492, 15399, 20126, 20473, 20532, 30189, 30798, 40252, 40946, 60378, 61419, 61596, 81892, 90567, 120756, 122838, 181134, 184257, 245676, 362268, 368514, 593717, 737028, 1187434, 1781151, 2374868, 3562302, 5343453, 7124604, 10686906, 21373812]

約数ペア:

[(1, 21373812), (2, 10686906), (3, 7124604), (4, 5343453), (6, 3562302), (9, 2374868), (12, 1781151), (18, 1187434), (29, 737028), (36, 593717), (58, 368514), (59, 362268), (87, 245676), (116, 184257), (118, 181134), (174, 122838), (177, 120756), (236, 90567), (261, 81892), (347, 61596), (348, 61419), (354, 60378), (522, 40946), (531, 40252), (694, 30798), (708, 30189), (1041, 20532), (1044, 20473), (1062, 20126), (1388, 15399), (1711, 12492), (2082, 10266), (2124, 10063), (3123, 6844), (3422, 6246), (4164, 5133)]