20228439

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1307}}^1$

素因数の和:1395

約数の個数: 32

約数和(自身を含む): 34154496

約数和(自身を除く): 13926057

約数列:

[1, 3, 7, 11, 21, 33, 67, 77, 201, 231, 469, 737, 1307, 1407, 2211, 3921, 5159, 9149, 14377, 15477, 27447, 43131, 87569, 100639, 262707, 301917, 612983, 963259, 1838949, 2889777, 6742813, 20228439]

約数ペア:

[(1, 20228439), (3, 6742813), (7, 2889777), (11, 1838949), (21, 963259), (33, 612983), (67, 301917), (77, 262707), (201, 100639), (231, 87569), (469, 43131), (737, 27447), (1307, 15477), (1407, 14377), (2211, 9149), (3921, 5159)]