21031024

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{9883}}^1$

素因数の和:9917

約数の個数: 40

約数和(自身を含む): 49024640

約数和(自身を除く): 27993616

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 9883, 19766, 39532, 69181, 79064, 138362, 158128, 187777, 276724, 375554, 553448, 751108, 1106896, 1314439, 1502216, 2628878, 3004432, 5257756, 10515512, 21031024]

約数ペア:

[(1, 21031024), (2, 10515512), (4, 5257756), (7, 3004432), (8, 2628878), (14, 1502216), (16, 1314439), (19, 1106896), (28, 751108), (38, 553448), (56, 375554), (76, 276724), (112, 187777), (133, 158128), (152, 138362), (266, 79064), (304, 69181), (532, 39532), (1064, 19766), (2128, 9883)]