1216539

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{653}}^1$

素因数の和:688

約数の個数: 20

約数和(自身を含む): 1899216

約数和(自身を除く): 682677

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 653, 1863, 1959, 5877, 15019, 17631, 45057, 52893, 135171, 405513, 1216539]

約数ペア:

[(1, 1216539), (3, 405513), (9, 135171), (23, 52893), (27, 45057), (69, 17631), (81, 15019), (207, 5877), (621, 1959), (653, 1863)]