81409874

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{63901}}^1$

素因数の和:63930

約数の個数: 24

約数和(自身を含む): 152981388

約数和(自身を除く): 71571514

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 182, 637, 1274, 63901, 127802, 447307, 830713, 894614, 1661426, 3131149, 5814991, 6262298, 11629982, 40704937, 81409874]

約数ペア:

[(1, 81409874), (2, 40704937), (7, 11629982), (13, 6262298), (14, 5814991), (26, 3131149), (49, 1661426), (91, 894614), (98, 830713), (182, 447307), (637, 127802), (1274, 63901)]