21723112

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{643}}^1$

素因数の和:793

約数の個数: 32

約数和(自身を含む): 42194880

約数和(自身を除く): 20471768

約数列:

[1, 2, 4, 8, 41, 82, 103, 164, 206, 328, 412, 643, 824, 1286, 2572, 4223, 5144, 8446, 16892, 26363, 33784, 52726, 66229, 105452, 132458, 210904, 264916, 529832, 2715389, 5430778, 10861556, 21723112]

約数ペア:

[(1, 21723112), (2, 10861556), (4, 5430778), (8, 2715389), (41, 529832), (82, 264916), (103, 210904), (164, 132458), (206, 105452), (328, 66229), (412, 52726), (643, 33784), (824, 26363), (1286, 16892), (2572, 8446), (4223, 5144)]