31372887

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{16417}}^1$

素因数の和:16447

約数の個数: 24

約数和(自身を含む): 52406256

約数和(自身を除く): 21033369

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 16417, 49251, 114919, 213421, 344757, 640263, 804433, 1493947, 2413299, 4481841, 10457629, 31372887]

約数ペア:

[(1, 31372887), (3, 10457629), (7, 4481841), (13, 2413299), (21, 1493947), (39, 804433), (49, 640263), (91, 344757), (147, 213421), (273, 114919), (637, 49251), (1911, 16417)]