291320253

素因数分解:

$3^3\times 7^1\times {\mathrm{1541377}}^1$

素因数の和:1541393

約数の個数: 16

約数和(自身を含む): 493240960

約数和(自身を除く): 201920707

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 1541377, 4624131, 10789639, 13872393, 32368917, 41617179, 97106751, 291320253]

約数ペア:

[(1, 291320253), (3, 97106751), (7, 41617179), (9, 32368917), (21, 13872393), (27, 10789639), (63, 4624131), (189, 1541377)]