19807012

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{719}}^1$

素因数の和:891

約数の個数: 24

約数和(自身を含む): 35562240

約数和(自身を除く): 15755228

約数列:

[1, 2, 4, 71, 97, 142, 194, 284, 388, 719, 1438, 2876, 6887, 13774, 27548, 51049, 69743, 102098, 139486, 204196, 278972, 4951753, 9903506, 19807012]

約数ペア:

[(1, 19807012), (2, 9903506), (4, 4951753), (71, 278972), (97, 204196), (142, 139486), (194, 102098), (284, 69743), (388, 51049), (719, 27548), (1438, 13774), (2876, 6887)]