21156224

素因数分解:

$2^7\times {\mathrm{197}}^1\times {\mathrm{839}}^1$

素因数の和:1050

約数の個数: 32

約数和(自身を含む): 42411600

約数和(自身を除く): 21255376

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 197, 394, 788, 839, 1576, 1678, 3152, 3356, 6304, 6712, 12608, 13424, 25216, 26848, 53696, 107392, 165283, 330566, 661132, 1322264, 2644528, 5289056, 10578112, 21156224]

約数ペア:

[(1, 21156224), (2, 10578112), (4, 5289056), (8, 2644528), (16, 1322264), (32, 661132), (64, 330566), (128, 165283), (197, 107392), (394, 53696), (788, 26848), (839, 25216), (1576, 13424), (1678, 12608), (3152, 6712), (3356, 6304)]