19994793

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{10463}}^1$

素因数の和:10493

約数の個数: 24

約数和(自身を含む): 33401088

約数和(自身を除く): 13406295

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 10463, 31389, 73241, 136019, 219723, 408057, 512687, 952133, 1538061, 2856399, 6664931, 19994793]

約数ペア:

[(1, 19994793), (3, 6664931), (7, 2856399), (13, 1538061), (21, 952133), (39, 512687), (49, 408057), (91, 219723), (147, 136019), (273, 73241), (637, 31389), (1911, 10463)]