21451184

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{557}}^1$

素因数の和:677

約数の個数: 40

約数和(自身を含む): 43590960

約数和(自身を除く): 22139776

約数列:

[1, 2, 4, 8, 16, 29, 58, 83, 116, 166, 232, 332, 464, 557, 664, 1114, 1328, 2228, 2407, 4456, 4814, 8912, 9628, 16153, 19256, 32306, 38512, 46231, 64612, 92462, 129224, 184924, 258448, 369848, 739696, 1340699, 2681398, 5362796, 10725592, 21451184]

約数ペア:

[(1, 21451184), (2, 10725592), (4, 5362796), (8, 2681398), (16, 1340699), (29, 739696), (58, 369848), (83, 258448), (116, 184924), (166, 129224), (232, 92462), (332, 64612), (464, 46231), (557, 38512), (664, 32306), (1114, 19256), (1328, 16153), (2228, 9628), (2407, 8912), (4456, 4814)]