21283752

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{839}}^1$

素因数の和:1006

約数の個数: 64

約数和(自身を含む): 61286400

約数和(自身を除く): 40002648

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 151, 168, 302, 453, 604, 839, 906, 1057, 1208, 1678, 1812, 2114, 2517, 3171, 3356, 3624, 4228, 5034, 5873, 6342, 6712, 8456, 10068, 11746, 12684, 17619, 20136, 23492, 25368, 35238, 46984, 70476, 126689, 140952, 253378, 380067, 506756, 760134, 886823, 1013512, 1520268, 1773646, 2660469, 3040536, 3547292, 5320938, 7094584, 10641876, 21283752]

約数ペア:

[(1, 21283752), (2, 10641876), (3, 7094584), (4, 5320938), (6, 3547292), (7, 3040536), (8, 2660469), (12, 1773646), (14, 1520268), (21, 1013512), (24, 886823), (28, 760134), (42, 506756), (56, 380067), (84, 253378), (151, 140952), (168, 126689), (302, 70476), (453, 46984), (604, 35238), (839, 25368), (906, 23492), (1057, 20136), (1208, 17619), (1678, 12684), (1812, 11746), (2114, 10068), (2517, 8456), (3171, 6712), (3356, 6342), (3624, 5873), (4228, 5034)]