28987861

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{307}}^1$

素因数の和:409

約数の個数: 24

約数和(自身を含む): 35392896

約数和(自身を除く): 6405035

約数列:

[1, 7, 41, 47, 49, 287, 307, 329, 1927, 2009, 2149, 2303, 12587, 13489, 14429, 15043, 88109, 94423, 101003, 591589, 616763, 707021, 4141123, 28987861]

約数ペア:

[(1, 28987861), (7, 4141123), (41, 707021), (47, 616763), (49, 591589), (287, 101003), (307, 94423), (329, 88109), (1927, 15043), (2009, 14429), (2149, 13489), (2303, 12587)]