31120929

素因数分解:

$3^4\times 7^2\times {\mathrm{7841}}^1$

素因数の和:7867

約数の個数: 30

約数和(自身を含む): 54086274

約数和(自身を除く): 22965345

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 7841, 23523, 54887, 70569, 164661, 211707, 384209, 493983, 635121, 1152627, 1481949, 3457881, 4445847, 10373643, 31120929]

約数ペア:

[(1, 31120929), (3, 10373643), (7, 4445847), (9, 3457881), (21, 1481949), (27, 1152627), (49, 635121), (63, 493983), (81, 384209), (147, 211707), (189, 164661), (441, 70569), (567, 54887), (1323, 23523), (3969, 7841)]