21204832

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{563}}^1$

素因数の和:691

約数の個数: 48

約数和(自身を含む): 46049472

約数和(自身を除く): 24844640

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 107, 176, 214, 352, 428, 563, 856, 1126, 1177, 1712, 2252, 2354, 3424, 4504, 4708, 6193, 9008, 9416, 12386, 18016, 18832, 24772, 37664, 49544, 60241, 99088, 120482, 198176, 240964, 481928, 662651, 963856, 1325302, 1927712, 2650604, 5301208, 10602416, 21204832]

約数ペア:

[(1, 21204832), (2, 10602416), (4, 5301208), (8, 2650604), (11, 1927712), (16, 1325302), (22, 963856), (32, 662651), (44, 481928), (88, 240964), (107, 198176), (176, 120482), (214, 99088), (352, 60241), (428, 49544), (563, 37664), (856, 24772), (1126, 18832), (1177, 18016), (1712, 12386), (2252, 9416), (2354, 9008), (3424, 6193), (4504, 4708)]