21776876

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 43182720

約数和(自身を除く): 21405844

約数列:

[1, 2, 4, 11, 22, 44, 67, 83, 89, 134, 166, 178, 268, 332, 356, 737, 913, 979, 1474, 1826, 1958, 2948, 3652, 3916, 5561, 5963, 7387, 11122, 11926, 14774, 22244, 23852, 29548, 61171, 65593, 81257, 122342, 131186, 162514, 244684, 262372, 325028, 494929, 989858, 1979716, 5444219, 10888438, 21776876]

約数ペア:

[(1, 21776876), (2, 10888438), (4, 5444219), (11, 1979716), (22, 989858), (44, 494929), (67, 325028), (83, 262372), (89, 244684), (134, 162514), (166, 131186), (178, 122342), (268, 81257), (332, 65593), (356, 61171), (737, 29548), (913, 23852), (979, 22244), (1474, 14774), (1826, 11926), (1958, 11122), (2948, 7387), (3652, 5963), (3916, 5561)]