271997019

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{64439}}^1$

素因数の和:64519

約数の個数: 24

約数和(自身を含む): 455719680

約数和(自身を除く): 183722661

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 4221, 64439, 193317, 451073, 579951, 1353219, 4059657, 4317413, 12952239, 30221891, 38856717, 90665673, 271997019]

約数ペア:

[(1, 271997019), (3, 90665673), (7, 38856717), (9, 30221891), (21, 12952239), (63, 4317413), (67, 4059657), (201, 1353219), (469, 579951), (603, 451073), (1407, 193317), (4221, 64439)]