216828981

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{116387}}^1$

素因数の和:116422

約数の個数: 20

約数和(自身を含む): 337990752

約数和(自身を除く): 121161771

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 116387, 349161, 1047483, 2676901, 3142449, 8030703, 9427347, 24092109, 72276327, 216828981]

約数ペア:

[(1, 216828981), (3, 72276327), (9, 24092109), (23, 9427347), (27, 8030703), (69, 3142449), (81, 2676901), (207, 1047483), (621, 349161), (1863, 116387)]