21374913

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{23671}}^1$

素因数の和:23724

約数の個数: 16

約数和(自身を含む): 33330176

約数和(自身を除く): 11955263

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 23671, 71013, 165697, 497091, 1017853, 3053559, 7124971, 21374913]

約数ペア:

[(1, 21374913), (3, 7124971), (7, 3053559), (21, 1017853), (43, 497091), (129, 165697), (301, 71013), (903, 23671)]