1320259563

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{445883}}^1$

素因数の和:445943

約数の個数: 24

約数和(自身を含む): 2225852928

約数和(自身を除く): 905593365

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 445883, 1337649, 3121181, 4012947, 9363543, 20956501, 28090629, 62869503, 146695507, 188608509, 440086521, 1320259563]

約数ペア:

[(1, 1320259563), (3, 440086521), (7, 188608509), (9, 146695507), (21, 62869503), (47, 28090629), (63, 20956501), (141, 9363543), (329, 4012947), (423, 3121181), (987, 1337649), (2961, 445883)]