18684393

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{769}}^1$

素因数の和:881

約数の個数: 32

約数和(自身を含む): 31046400

約数和(自身を除く): 12362007

約数列:

[1, 3, 7, 13, 21, 39, 89, 91, 267, 273, 623, 769, 1157, 1869, 2307, 3471, 5383, 8099, 9997, 16149, 24297, 29991, 68441, 69979, 205323, 209937, 479087, 889733, 1437261, 2669199, 6228131, 18684393]

約数ペア:

[(1, 18684393), (3, 6228131), (7, 2669199), (13, 1437261), (21, 889733), (39, 479087), (89, 209937), (91, 205323), (267, 69979), (273, 68441), (623, 29991), (769, 24297), (1157, 16149), (1869, 9997), (2307, 8099), (3471, 5383)]