18893721

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{919}}^1$

素因数の和:1029

約数の個数: 32

約数和(自身を含む): 31795200

約数和(自身を除く): 12901479

約数列:

[1, 3, 7, 11, 21, 33, 77, 89, 231, 267, 623, 919, 979, 1869, 2757, 2937, 6433, 6853, 10109, 19299, 20559, 30327, 70763, 81791, 212289, 245373, 572537, 899701, 1717611, 2699103, 6297907, 18893721]

約数ペア:

[(1, 18893721), (3, 6297907), (7, 2699103), (11, 1717611), (21, 899701), (33, 572537), (77, 245373), (89, 212289), (231, 81791), (267, 70763), (623, 30327), (919, 20559), (979, 19299), (1869, 10109), (2757, 6853), (2937, 6433)]