21059906

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{12641}}^1$

素因数の和:12674

約数の個数: 24

約数和(自身を含む): 38912076

約数和(自身を除く): 17852170

約数列:

[1, 2, 7, 14, 17, 34, 49, 98, 119, 238, 833, 1666, 12641, 25282, 88487, 176974, 214897, 429794, 619409, 1238818, 1504279, 3008558, 10529953, 21059906]

約数ペア:

[(1, 21059906), (2, 10529953), (7, 3008558), (14, 1504279), (17, 1238818), (34, 619409), (49, 429794), (98, 214897), (119, 176974), (238, 88487), (833, 25282), (1666, 12641)]