20820982

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{277}}^1$

素因数の和:365

約数の個数: 48

約数和(自身を含む): 39931920

約数和(自身を除く): 19110938

約数列:

[1, 2, 7, 13, 14, 26, 49, 59, 91, 98, 118, 182, 277, 413, 554, 637, 767, 826, 1274, 1534, 1939, 2891, 3601, 3878, 5369, 5782, 7202, 10738, 13573, 16343, 25207, 27146, 32686, 37583, 50414, 75166, 114401, 176449, 212459, 228802, 352898, 424918, 800807, 1487213, 1601614, 2974426, 10410491, 20820982]

約数ペア:

[(1, 20820982), (2, 10410491), (7, 2974426), (13, 1601614), (14, 1487213), (26, 800807), (49, 424918), (59, 352898), (91, 228802), (98, 212459), (118, 176449), (182, 114401), (277, 75166), (413, 50414), (554, 37583), (637, 32686), (767, 27146), (826, 25207), (1274, 16343), (1534, 13573), (1939, 10738), (2891, 7202), (3601, 5782), (3878, 5369)]