21100554

素因数分解:

$2^1\times 3^3\times {\mathrm{390751}}^1$

素因数の和:390762

約数の個数: 16

約数和(自身を含む): 46890240

約数和(自身を除く): 25789686

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 390751, 781502, 1172253, 2344506, 3516759, 7033518, 10550277, 21100554]

約数ペア:

[(1, 21100554), (2, 10550277), (3, 7033518), (6, 3516759), (9, 2344506), (18, 1172253), (27, 781502), (54, 390751)]