18934251

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{21991}}^1$

素因数の和:22042

約数の個数: 16

約数和(自身を含む): 29557248

約数和(自身を除く): 10622997

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 21991, 65973, 153937, 461811, 901631, 2704893, 6311417, 18934251]

約数ペア:

[(1, 18934251), (3, 6311417), (7, 2704893), (21, 901631), (41, 461811), (123, 153937), (287, 65973), (861, 21991)]