21189402

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{1091}}^1$

素因数の和:1195

約数の個数: 48

約数和(自身を含む): 50083488

約数和(自身を除く): 28894086

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 83, 117, 166, 234, 249, 498, 747, 1079, 1091, 1494, 2158, 2182, 3237, 3273, 6474, 6546, 9711, 9819, 14183, 19422, 19638, 28366, 42549, 85098, 90553, 127647, 181106, 255294, 271659, 543318, 814977, 1177189, 1629954, 2354378, 3531567, 7063134, 10594701, 21189402]

約数ペア:

[(1, 21189402), (2, 10594701), (3, 7063134), (6, 3531567), (9, 2354378), (13, 1629954), (18, 1177189), (26, 814977), (39, 543318), (78, 271659), (83, 255294), (117, 181106), (166, 127647), (234, 90553), (249, 85098), (498, 42549), (747, 28366), (1079, 19638), (1091, 19422), (1494, 14183), (2158, 9819), (2182, 9711), (3237, 6546), (3273, 6474)]