261255981

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{185683}}^1$

素因数の和:185760

約数の個数: 16

約数和(自身を含む): 404048384

約数和(自身を除く): 142792403

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 185683, 557049, 1299781, 3899343, 12440761, 37322283, 87085327, 261255981]

約数ペア:

[(1, 261255981), (3, 87085327), (7, 37322283), (21, 12440761), (67, 3899343), (201, 1299781), (469, 557049), (1407, 185683)]