25641819

素因数分解:

$3^3\times 7^1\times {\mathrm{135671}}^1$

素因数の和:135687

約数の個数: 16

約数和(自身を含む): 43415040

約数和(自身を除く): 17773221

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 135671, 407013, 949697, 1221039, 2849091, 3663117, 8547273, 25641819]

約数ペア:

[(1, 25641819), (3, 8547273), (7, 3663117), (9, 2849091), (21, 1221039), (27, 949697), (63, 407013), (189, 135671)]