21031688

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{1733}}^1$

素因数の和:1817

約数の個数: 32

約数和(自身を含む): 41511960

約数和(自身を除く): 20480272

約数列:

[1, 2, 4, 8, 37, 41, 74, 82, 148, 164, 296, 328, 1517, 1733, 3034, 3466, 6068, 6932, 12136, 13864, 64121, 71053, 128242, 142106, 256484, 284212, 512968, 568424, 2628961, 5257922, 10515844, 21031688]

約数ペア:

[(1, 21031688), (2, 10515844), (4, 5257922), (8, 2628961), (37, 568424), (41, 512968), (74, 284212), (82, 256484), (148, 142106), (164, 128242), (296, 71053), (328, 64121), (1517, 13864), (1733, 12136), (3034, 6932), (3466, 6068)]