19984796

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{5413}}^1$

素因数の和:5501

約数の個数: 24

約数和(自身を含む): 38201184

約数和(自身を除く): 18216388

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 284, 923, 1846, 3692, 5413, 10826, 21652, 70369, 140738, 281476, 384323, 768646, 1537292, 4996199, 9992398, 19984796]

約数ペア:

[(1, 19984796), (2, 9992398), (4, 4996199), (13, 1537292), (26, 768646), (52, 384323), (71, 281476), (142, 140738), (284, 70369), (923, 21652), (1846, 10826), (3692, 5413)]