21132212868

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{303049}}^1$

素因数の和:303221

約数の個数: 72

約数和(自身を含む): 57912855000

約数和(自身を除く): 36780642132

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 149, 156, 234, 298, 447, 468, 596, 894, 1341, 1788, 1937, 2682, 3874, 5364, 5811, 7748, 11622, 17433, 23244, 34866, 69732, 303049, 606098, 909147, 1212196, 1818294, 2727441, 3636588, 3939637, 5454882, 7879274, 10909764, 11818911, 15758548, 23637822, 35456733, 45154301, 47275644, 70913466, 90308602, 135462903, 141826932, 180617204, 270925806, 406388709, 541851612, 587005913, 812777418, 1174011826, 1625554836, 1761017739, 2348023652, 3522035478, 5283053217, 7044070956, 10566106434, 21132212868]

約数ペア:

[(1, 21132212868), (2, 10566106434), (3, 7044070956), (4, 5283053217), (6, 3522035478), (9, 2348023652), (12, 1761017739), (13, 1625554836), (18, 1174011826), (26, 812777418), (36, 587005913), (39, 541851612), (52, 406388709), (78, 270925806), (117, 180617204), (149, 141826932), (156, 135462903), (234, 90308602), (298, 70913466), (447, 47275644), (468, 45154301), (596, 35456733), (894, 23637822), (1341, 15758548), (1788, 11818911), (1937, 10909764), (2682, 7879274), (3874, 5454882), (5364, 3939637), (5811, 3636588), (7748, 2727441), (11622, 1818294), (17433, 1212196), (23244, 909147), (34866, 606098), (69732, 303049)]