28408681

素因数分解:

$7^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:293

約数の個数: 24

約数和(自身を含む): 34409760

約数和(自身を除く): 6001079

約数列:

[1, 7, 43, 49, 97, 139, 301, 679, 973, 2107, 4171, 4753, 5977, 6811, 13483, 29197, 41839, 94381, 204379, 292873, 579769, 660667, 4058383, 28408681]

約数ペア:

[(1, 28408681), (7, 4058383), (43, 660667), (49, 579769), (97, 292873), (139, 204379), (301, 94381), (679, 41839), (973, 29197), (2107, 13483), (4171, 6811), (4753, 5977)]