21265706

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19727}}^1$

素因数の和:19754

約数の個数: 24

約数和(自身を含む): 40481856

約数和(自身を除く): 19216150

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 19727, 39454, 138089, 216997, 276178, 433994, 966623, 1518979, 1933246, 3037958, 10632853, 21265706]

約数ペア:

[(1, 21265706), (2, 10632853), (7, 3037958), (11, 1933246), (14, 1518979), (22, 966623), (49, 433994), (77, 276178), (98, 216997), (154, 138089), (539, 39454), (1078, 19727)]