16999420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{20731}}^1$

素因数の和:20781

約数の個数: 24

約数和(自身を含む): 36571248

約数和(自身を除く): 19571828

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 20731, 41462, 82924, 103655, 207310, 414620, 849971, 1699942, 3399884, 4249855, 8499710, 16999420]

約数ペア:

[(1, 16999420), (2, 8499710), (4, 4249855), (5, 3399884), (10, 1699942), (20, 849971), (41, 414620), (82, 207310), (164, 103655), (205, 82924), (410, 41462), (820, 20731)]