26278539

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{983}}^1$

素因数の和:1079

約数の個数: 32

約数和(自身を含む): 42823680

約数和(自身を除く): 16545141

約数列:

[1, 3, 7, 19, 21, 57, 67, 133, 201, 399, 469, 983, 1273, 1407, 2949, 3819, 6881, 8911, 18677, 20643, 26733, 56031, 65861, 130739, 197583, 392217, 461027, 1251359, 1383081, 3754077, 8759513, 26278539]

約数ペア:

[(1, 26278539), (3, 8759513), (7, 3754077), (19, 1383081), (21, 1251359), (57, 461027), (67, 392217), (133, 197583), (201, 130739), (399, 65861), (469, 56031), (983, 26733), (1273, 20643), (1407, 18677), (2949, 8911), (3819, 6881)]