217465641

素因数分解:

$3^4\times {\mathrm{607}}^1\times {\mathrm{4423}}^1$

素因数の和:5042

約数の個数: 20

約数和(自身を含む): 325464832

約数和(自身を除く): 107999191

約数列:

[1, 3, 9, 27, 81, 607, 1821, 4423, 5463, 13269, 16389, 39807, 49167, 119421, 358263, 2684761, 8054283, 24162849, 72488547, 217465641]

約数ペア:

[(1, 217465641), (3, 72488547), (9, 24162849), (27, 8054283), (81, 2684761), (607, 358263), (1821, 119421), (4423, 49167), (5463, 39807), (13269, 16389)]