18173169

素因数分解:

$3^2\times 7^4\times {\mathrm{29}}^2$

素因数の和:92

約数の個数: 45

約数和(自身を含む): 31715723

約数和(自身を除く): 13542554

約数列:

[1, 3, 7, 9, 21, 29, 49, 63, 87, 147, 203, 261, 343, 441, 609, 841, 1029, 1421, 1827, 2401, 2523, 3087, 4263, 5887, 7203, 7569, 9947, 12789, 17661, 21609, 29841, 41209, 52983, 69629, 89523, 123627, 208887, 288463, 370881, 626661, 865389, 2019241, 2596167, 6057723, 18173169]

約数ペア:

[(1, 18173169), (3, 6057723), (7, 2596167), (9, 2019241), (21, 865389), (29, 626661), (49, 370881), (63, 288463), (87, 208887), (147, 123627), (203, 89523), (261, 69629), (343, 52983), (441, 41209), (609, 29841), (841, 21609), (1029, 17661), (1421, 12789), (1827, 9947), (2401, 7569), (2523, 7203), (3087, 5887)]