21402318

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{72797}}^1$

素因数の和:72816

約数の個数: 24

約数和(自身を含む): 49793832

約数和(自身を除く): 28391514

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 72797, 145594, 218391, 436782, 509579, 1019158, 1528737, 3057474, 3567053, 7134106, 10701159, 21402318]

約数ペア:

[(1, 21402318), (2, 10701159), (3, 7134106), (6, 3567053), (7, 3057474), (14, 1528737), (21, 1019158), (42, 509579), (49, 436782), (98, 218391), (147, 145594), (294, 72797)]