28665813

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{349}}^1$

素因数の和:513

約数の個数: 32

約数和(自身を含む): 44352000

約数和(自身を除く): 15686187

約数列:

[1, 3, 11, 19, 33, 57, 131, 209, 349, 393, 627, 1047, 1441, 2489, 3839, 4323, 6631, 7467, 11517, 19893, 27379, 45719, 72941, 82137, 137157, 218823, 502909, 868661, 1508727, 2605983, 9555271, 28665813]

約数ペア:

[(1, 28665813), (3, 9555271), (11, 2605983), (19, 1508727), (33, 868661), (57, 502909), (131, 218823), (209, 137157), (349, 82137), (393, 72941), (627, 45719), (1047, 27379), (1441, 19893), (2489, 11517), (3839, 7467), (4323, 6631)]