21201752

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{431}}^1$

素因数の和:504

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 26698408

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 43, 44, 52, 86, 88, 104, 143, 172, 286, 344, 431, 473, 559, 572, 862, 946, 1118, 1144, 1724, 1892, 2236, 3448, 3784, 4472, 4741, 5603, 6149, 9482, 11206, 12298, 18533, 18964, 22412, 24596, 37066, 37928, 44824, 49192, 61633, 74132, 123266, 148264, 203863, 240929, 246532, 407726, 481858, 493064, 815452, 963716, 1630904, 1927432, 2650219, 5300438, 10600876, 21201752]

約数ペア:

[(1, 21201752), (2, 10600876), (4, 5300438), (8, 2650219), (11, 1927432), (13, 1630904), (22, 963716), (26, 815452), (43, 493064), (44, 481858), (52, 407726), (86, 246532), (88, 240929), (104, 203863), (143, 148264), (172, 123266), (286, 74132), (344, 61633), (431, 49192), (473, 44824), (559, 37928), (572, 37066), (862, 24596), (946, 22412), (1118, 18964), (1144, 18533), (1724, 12298), (1892, 11206), (2236, 9482), (3448, 6149), (3784, 5603), (4472, 4741)]