21845972

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{1289}}^1$

素因数の和:1535

約数の個数: 24

約数和(自身を含む): 40454400

約数和(自身を除く): 18608428

約数列:

[1, 2, 4, 19, 38, 76, 223, 446, 892, 1289, 2578, 4237, 5156, 8474, 16948, 24491, 48982, 97964, 287447, 574894, 1149788, 5461493, 10922986, 21845972]

約数ペア:

[(1, 21845972), (2, 10922986), (4, 5461493), (19, 1149788), (38, 574894), (76, 287447), (223, 97964), (446, 48982), (892, 24491), (1289, 16948), (2578, 8474), (4237, 5156)]