20213829

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1367}}^1$

素因数の和:1457

約数の個数: 24

約数和(自身を含む): 30730752

約数和(自身を除く): 10516923

約数列:

[1, 3, 9, 31, 53, 93, 159, 279, 477, 1367, 1643, 4101, 4929, 12303, 14787, 42377, 72451, 127131, 217353, 381393, 652059, 2245981, 6737943, 20213829]

約数ペア:

[(1, 20213829), (3, 6737943), (9, 2245981), (31, 652059), (53, 381393), (93, 217353), (159, 127131), (279, 72451), (477, 42377), (1367, 14787), (1643, 12303), (4101, 4929)]