28140729

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{257}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 42353280

約数和(自身を除く): 14212551

約数列:

[1, 3, 17, 19, 51, 57, 113, 257, 323, 339, 771, 969, 1921, 2147, 4369, 4883, 5763, 6441, 13107, 14649, 29041, 36499, 83011, 87123, 109497, 249033, 493697, 551779, 1481091, 1655337, 9380243, 28140729]

約数ペア:

[(1, 28140729), (3, 9380243), (17, 1655337), (19, 1481091), (51, 551779), (57, 493697), (113, 249033), (257, 109497), (323, 87123), (339, 83011), (771, 36499), (969, 29041), (1921, 14649), (2147, 13107), (4369, 6441), (4883, 5763)]