21412072

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1$

素因数の和:262

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 25036568

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 47, 62, 88, 94, 124, 167, 188, 248, 334, 341, 376, 517, 668, 682, 1034, 1336, 1364, 1457, 1837, 2068, 2728, 2914, 3674, 4136, 5177, 5828, 7348, 7849, 10354, 11656, 14696, 15698, 16027, 20708, 31396, 32054, 41416, 56947, 62792, 64108, 86339, 113894, 128216, 172678, 227788, 243319, 345356, 455576, 486638, 690712, 973276, 1946552, 2676509, 5353018, 10706036, 21412072]

約数ペア:

[(1, 21412072), (2, 10706036), (4, 5353018), (8, 2676509), (11, 1946552), (22, 973276), (31, 690712), (44, 486638), (47, 455576), (62, 345356), (88, 243319), (94, 227788), (124, 172678), (167, 128216), (188, 113894), (248, 86339), (334, 64108), (341, 62792), (376, 56947), (517, 41416), (668, 32054), (682, 31396), (1034, 20708), (1336, 16027), (1364, 15698), (1457, 14696), (1837, 11656), (2068, 10354), (2728, 7849), (2914, 7348), (3674, 5828), (4136, 5177)]