211077981

素因数分解:

$3^4\times {\mathrm{101}}^1\times {\mathrm{25801}}^1$

素因数の和:25914

約数の個数: 20

約数和(自身を含む): 318448284

約数和(自身を除く): 107370303

約数列:

[1, 3, 9, 27, 81, 101, 303, 909, 2727, 8181, 25801, 77403, 232209, 696627, 2089881, 2605901, 7817703, 23453109, 70359327, 211077981]

約数ペア:

[(1, 211077981), (3, 70359327), (9, 23453109), (27, 7817703), (81, 2605901), (101, 2089881), (303, 696627), (909, 232209), (2727, 77403), (8181, 25801)]