21987572

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{929}}^1$

素因数の和:1091

約数の個数: 24

約数和(自身を含む): 39554760

約数和(自身を除く): 17567188

約数列:

[1, 2, 4, 61, 97, 122, 194, 244, 388, 929, 1858, 3716, 5917, 11834, 23668, 56669, 90113, 113338, 180226, 226676, 360452, 5496893, 10993786, 21987572]

約数ペア:

[(1, 21987572), (2, 10993786), (4, 5496893), (61, 360452), (97, 226676), (122, 180226), (194, 113338), (244, 90113), (388, 56669), (929, 23668), (1858, 11834), (3716, 5917)]