21741777

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{5711}}^1$

素因数の和:5770

約数の個数: 20

約数和(自身を含む): 33175296

約数和(自身を除く): 11433519

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 5711, 17133, 51399, 154197, 268417, 462591, 805251, 2415753, 7247259, 21741777]

約数ペア:

[(1, 21741777), (3, 7247259), (9, 2415753), (27, 805251), (47, 462591), (81, 268417), (141, 154197), (423, 51399), (1269, 17133), (3807, 5711)]