491130981

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{261101}}^1$

素因数の和:261137

約数の個数: 24

約数和(自身を含む): 814638240

約数和(自身を除く): 323507259

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 171, 209, 627, 1881, 261101, 783303, 2349909, 2872111, 4960919, 8616333, 14882757, 25848999, 44648271, 54570109, 163710327, 491130981]

約数ペア:

[(1, 491130981), (3, 163710327), (9, 54570109), (11, 44648271), (19, 25848999), (33, 14882757), (57, 8616333), (99, 4960919), (171, 2872111), (209, 2349909), (627, 783303), (1881, 261101)]