21157836

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{251879}}^1$

素因数の和:251893

約数の個数: 24

約数和(自身を含む): 56421120

約数和(自身を除く): 35263284

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 251879, 503758, 755637, 1007516, 1511274, 1763153, 3022548, 3526306, 5289459, 7052612, 10578918, 21157836]

約数ペア:

[(1, 21157836), (2, 10578918), (3, 7052612), (4, 5289459), (6, 3526306), (7, 3022548), (12, 1763153), (14, 1511274), (21, 1007516), (28, 755637), (42, 503758), (84, 251879)]