21187904

素因数分解:

$2^6\times {\mathrm{97}}^1\times {\mathrm{3413}}^1$

素因数の和:3522

約数の個数: 28

約数和(自身を含む): 42490644

約数和(自身を除く): 21302740

約数列:

[1, 2, 4, 8, 16, 32, 64, 97, 194, 388, 776, 1552, 3104, 3413, 6208, 6826, 13652, 27304, 54608, 109216, 218432, 331061, 662122, 1324244, 2648488, 5296976, 10593952, 21187904]

約数ペア:

[(1, 21187904), (2, 10593952), (4, 5296976), (8, 2648488), (16, 1324244), (32, 662122), (64, 331061), (97, 218432), (194, 109216), (388, 54608), (776, 27304), (1552, 13652), (3104, 6826), (3413, 6208)]