21491148

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{255847}}^1$

素因数の和:255861

約数の個数: 24

約数和(自身を含む): 57309952

約数和(自身を除く): 35818804

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 255847, 511694, 767541, 1023388, 1535082, 1790929, 3070164, 3581858, 5372787, 7163716, 10745574, 21491148]

約数ペア:

[(1, 21491148), (2, 10745574), (3, 7163716), (4, 5372787), (6, 3581858), (7, 3070164), (12, 1790929), (14, 1535082), (21, 1023388), (28, 767541), (42, 511694), (84, 255847)]