30686691

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{10987}}^1$

素因数の和:11023

約数の個数: 24

約数和(自身を含む): 50105280

約数和(自身を除く): 19418589

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 10987, 32961, 76909, 208753, 230727, 538363, 626259, 1461271, 1615089, 4383813, 10228897, 30686691]

約数ペア:

[(1, 30686691), (3, 10228897), (7, 4383813), (19, 1615089), (21, 1461271), (49, 626259), (57, 538363), (133, 230727), (147, 208753), (399, 76909), (931, 32961), (2793, 10987)]