28906619

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{509}}^1$

素因数の和:603

約数の個数: 24

約数和(自身を含む): 36046800

約数和(自身を除く): 7140181

約数列:

[1, 7, 19, 49, 61, 133, 427, 509, 931, 1159, 2989, 3563, 8113, 9671, 24941, 31049, 56791, 67697, 217343, 473879, 589931, 1521401, 4129517, 28906619]

約数ペア:

[(1, 28906619), (7, 4129517), (19, 1521401), (49, 589931), (61, 473879), (133, 217343), (427, 67697), (509, 56791), (931, 31049), (1159, 24941), (2989, 9671), (3563, 8113)]