520020891

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{1399}}^1$

素因数の和:1777

約数の個数: 40

約数和(自身を含む): 839546400

約数和(自身を除く): 319525509

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 353, 1053, 1059, 1399, 3177, 4197, 4589, 9531, 12591, 13767, 18187, 28593, 37773, 41301, 54561, 113319, 123903, 163683, 371709, 491049, 493847, 1473147, 1481541, 4444623, 6420011, 13333869, 19260033, 40001607, 57780099, 173340297, 520020891]

約数ペア:

[(1, 520020891), (3, 173340297), (9, 57780099), (13, 40001607), (27, 19260033), (39, 13333869), (81, 6420011), (117, 4444623), (351, 1481541), (353, 1473147), (1053, 493847), (1059, 491049), (1399, 371709), (3177, 163683), (4197, 123903), (4589, 113319), (9531, 54561), (12591, 41301), (13767, 37773), (18187, 28593)]