21311633

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{211}}^1\times {\mathrm{307}}^1$

素因数の和:572

約数の個数: 16

約数和(自身を含む): 25073664

約数和(自身を除く): 3762031

約数列:

[1, 7, 47, 211, 307, 329, 1477, 2149, 9917, 14429, 64777, 69419, 101003, 453439, 3044519, 21311633]

約数ペア:

[(1, 21311633), (7, 3044519), (47, 453439), (211, 101003), (307, 69419), (329, 64777), (1477, 14429), (2149, 9917)]