20602491

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{10781}}^1$

素因数の和:10811

約数の個数: 24

約数和(自身を含む): 34416144

約数和(自身を除く): 13813653

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 10781, 32343, 75467, 140153, 226401, 420459, 528269, 981071, 1584807, 2943213, 6867497, 20602491]

約数ペア:

[(1, 20602491), (3, 6867497), (7, 2943213), (13, 1584807), (21, 981071), (39, 528269), (49, 420459), (91, 226401), (147, 140153), (273, 75467), (637, 32343), (1911, 10781)]