213321721

素因数分解:

${\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{283}}^1\times {\mathrm{409}}^1$

素因数の和:808

約数の個数: 16

約数和(自身を含む): 228222400

約数和(自身を除く): 14900679

約数列:

[1, 19, 97, 283, 409, 1843, 5377, 7771, 27451, 39673, 115747, 521569, 753787, 2199193, 11227459, 213321721]

約数ペア:

[(1, 213321721), (19, 11227459), (97, 2199193), (283, 753787), (409, 521569), (1843, 115747), (5377, 39673), (7771, 27451)]