21321818

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{24967}}^1$

素因数の和:25037

約数の個数: 16

約数和(自身を含む): 37152384

約数和(自身を除く): 15830566

約数列:

[1, 2, 7, 14, 61, 122, 427, 854, 24967, 49934, 174769, 349538, 1522987, 3045974, 10660909, 21321818]

約数ペア:

[(1, 21321818), (2, 10660909), (7, 3045974), (14, 1522987), (61, 349538), (122, 174769), (427, 49934), (854, 24967)]