28678941

素因数分解:

$3^4\times {\mathrm{29}}^2\times {\mathrm{421}}^1$

素因数の和:491

約数の個数: 30

約数和(自身を含む): 44475002

約数和(自身を除く): 15796061

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 421, 783, 841, 1263, 2349, 2523, 3789, 7569, 11367, 12209, 22707, 34101, 36627, 68121, 109881, 329643, 354061, 988929, 1062183, 3186549, 9559647, 28678941]

約数ペア:

[(1, 28678941), (3, 9559647), (9, 3186549), (27, 1062183), (29, 988929), (81, 354061), (87, 329643), (261, 109881), (421, 68121), (783, 36627), (841, 34101), (1263, 22707), (2349, 12209), (2523, 11367), (3789, 7569)]