21468440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{76673}}^1$

素因数の和:76691

約数の個数: 32

約数和(自身を含む): 55205280

約数和(自身を除く): 33736840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 76673, 153346, 306692, 383365, 536711, 613384, 766730, 1073422, 1533460, 2146844, 2683555, 3066920, 4293688, 5367110, 10734220, 21468440]

約数ペア:

[(1, 21468440), (2, 10734220), (4, 5367110), (5, 4293688), (7, 3066920), (8, 2683555), (10, 2146844), (14, 1533460), (20, 1073422), (28, 766730), (35, 613384), (40, 536711), (56, 383365), (70, 306692), (140, 153346), (280, 76673)]