28197507

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{281}}^1$

素因数の和:411

約数の個数: 32

約数和(自身を含む): 42448896

約数和(自身を除く): 14251389

約数列:

[1, 3, 13, 31, 39, 83, 93, 249, 281, 403, 843, 1079, 1209, 2573, 3237, 3653, 7719, 8711, 10959, 23323, 26133, 33449, 69969, 100347, 113243, 303199, 339729, 723013, 909597, 2169039, 9399169, 28197507]

約数ペア:

[(1, 28197507), (3, 9399169), (13, 2169039), (31, 909597), (39, 723013), (83, 339729), (93, 303199), (249, 113243), (281, 100347), (403, 69969), (843, 33449), (1079, 26133), (1209, 23323), (2573, 10959), (3237, 8711), (3653, 7719)]