19997490818

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{211}}^1\times {\mathrm{6599}}^1$

素因数の和:7022

約数の個数: 32

約数和(自身を含む): 31028659200

約数和(自身を除く): 11031168382

約数列:

[1, 2, 43, 86, 167, 211, 334, 422, 6599, 7181, 9073, 13198, 14362, 18146, 35237, 70474, 283757, 567514, 1102033, 1392389, 1515191, 2204066, 2784778, 3030382, 47387419, 59872727, 94774838, 119745454, 232528963, 465057926, 9998745409, 19997490818]

約数ペア:

[(1, 19997490818), (2, 9998745409), (43, 465057926), (86, 232528963), (167, 119745454), (211, 94774838), (334, 59872727), (422, 47387419), (6599, 3030382), (7181, 2784778), (9073, 2204066), (13198, 1515191), (14362, 1392389), (18146, 1102033), (35237, 567514), (70474, 283757)]