20389012

素因数分解:

$2^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{7507}}^1$

素因数の和:7615

約数の個数: 24

約数和(自身を含む): 41203904

約数和(自身を除く): 20814892

約数列:

[1, 2, 4, 7, 14, 28, 97, 194, 388, 679, 1358, 2716, 7507, 15014, 30028, 52549, 105098, 210196, 728179, 1456358, 2912716, 5097253, 10194506, 20389012]

約数ペア:

[(1, 20389012), (2, 10194506), (4, 5097253), (7, 2912716), (14, 1456358), (28, 728179), (97, 210196), (194, 105098), (388, 52549), (679, 30028), (1358, 15014), (2716, 7507)]