18825191

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:215

約数の個数: 32

約数和(自身を含む): 24675840

約数和(自身を除く): 5850649

約数列:

[1, 7, 11, 41, 67, 77, 89, 287, 451, 469, 623, 737, 979, 2747, 3157, 3649, 5159, 5963, 6853, 19229, 25543, 30217, 40139, 41741, 65593, 211519, 244483, 280973, 459151, 1711381, 2689313, 18825191]

約数ペア:

[(1, 18825191), (7, 2689313), (11, 1711381), (41, 459151), (67, 280973), (77, 244483), (89, 211519), (287, 65593), (451, 41741), (469, 40139), (623, 30217), (737, 25543), (979, 19229), (2747, 6853), (3157, 5963), (3649, 5159)]