28639269

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{197}}^1\times {\mathrm{557}}^1$

素因数の和:789

約数の個数: 24

約数和(自身を含む): 43088760

約数和(自身を除く): 14449491

約数列:

[1, 3, 9, 29, 87, 197, 261, 557, 591, 1671, 1773, 5013, 5713, 16153, 17139, 48459, 51417, 109729, 145377, 329187, 987561, 3182141, 9546423, 28639269]

約数ペア:

[(1, 28639269), (3, 9546423), (9, 3182141), (29, 987561), (87, 329187), (197, 145377), (261, 109729), (557, 51417), (591, 48459), (1671, 17139), (1773, 16153), (5013, 5713)]