138855171

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{72661}}^1$

素因数の和:72691

約数の個数: 24

約数和(自身を含む): 231937104

約数和(自身を除く): 93081933

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 72661, 217983, 508627, 944593, 1525881, 2833779, 3560389, 6612151, 10681167, 19836453, 46285057, 138855171]

約数ペア:

[(1, 138855171), (3, 46285057), (7, 19836453), (13, 10681167), (21, 6612151), (39, 3560389), (49, 2833779), (91, 1525881), (147, 944593), (273, 508627), (637, 217983), (1911, 72661)]