21401401

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{733}}^1$

素因数の和:880

約数の個数: 16

約数和(自身を含む): 25320064

約数和(自身を除く): 3918663

約数列:

[1, 7, 43, 97, 301, 679, 733, 4171, 5131, 29197, 31519, 71101, 220633, 497707, 3057343, 21401401]

約数ペア:

[(1, 21401401), (7, 3057343), (43, 497707), (97, 220633), (301, 71101), (679, 31519), (733, 29197), (4171, 5131)]