21686608

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1901}}^1$

素因数の和:1963

約数の個数: 40

約数和(自身を含む): 45282816

約数和(自身を除く): 23596208

約数列:

[1, 2, 4, 8, 16, 23, 31, 46, 62, 92, 124, 184, 248, 368, 496, 713, 1426, 1901, 2852, 3802, 5704, 7604, 11408, 15208, 30416, 43723, 58931, 87446, 117862, 174892, 235724, 349784, 471448, 699568, 942896, 1355413, 2710826, 5421652, 10843304, 21686608]

約数ペア:

[(1, 21686608), (2, 10843304), (4, 5421652), (8, 2710826), (16, 1355413), (23, 942896), (31, 699568), (46, 471448), (62, 349784), (92, 235724), (124, 174892), (184, 117862), (248, 87446), (368, 58931), (496, 43723), (713, 30416), (1426, 15208), (1901, 11408), (2852, 7604), (3802, 5704)]