217857549

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{16979}}^1$

素因数の和:17049

約数の個数: 32

約数和(自身を含む): 365137920

約数和(自身を除く): 147280371

約数列:

[1, 3, 7, 13, 21, 39, 47, 91, 141, 273, 329, 611, 987, 1833, 4277, 12831, 16979, 50937, 118853, 220727, 356559, 662181, 798013, 1545089, 2394039, 4635267, 5586091, 10374169, 16758273, 31122507, 72619183, 217857549]

約数ペア:

[(1, 217857549), (3, 72619183), (7, 31122507), (13, 16758273), (21, 10374169), (39, 5586091), (47, 4635267), (91, 2394039), (141, 1545089), (273, 798013), (329, 662181), (611, 356559), (987, 220727), (1833, 118853), (4277, 50937), (12831, 16979)]