20218977

素因数分解:

$3^4\times {\mathrm{47}}^2\times {\mathrm{113}}^1$

素因数の和:219

約数の個数: 30

約数和(自身を含む): 31133058

約数和(自身を除く): 10914081

約数列:

[1, 3, 9, 27, 47, 81, 113, 141, 339, 423, 1017, 1269, 2209, 3051, 3807, 5311, 6627, 9153, 15933, 19881, 47799, 59643, 143397, 178929, 249617, 430191, 748851, 2246553, 6739659, 20218977]

約数ペア:

[(1, 20218977), (3, 6739659), (9, 2246553), (27, 748851), (47, 430191), (81, 249617), (113, 178929), (141, 143397), (339, 59643), (423, 47799), (1017, 19881), (1269, 15933), (2209, 9153), (3051, 6627), (3807, 5311)]