21083416

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{367}}^1$

素因数の和:583

約数の個数: 32

約数和(自身を含む): 40803840

約数和(自身を除く): 19720424

約数列:

[1, 2, 4, 8, 43, 86, 167, 172, 334, 344, 367, 668, 734, 1336, 1468, 2936, 7181, 14362, 15781, 28724, 31562, 57448, 61289, 63124, 122578, 126248, 245156, 490312, 2635427, 5270854, 10541708, 21083416]

約数ペア:

[(1, 21083416), (2, 10541708), (4, 5270854), (8, 2635427), (43, 490312), (86, 245156), (167, 126248), (172, 122578), (334, 63124), (344, 61289), (367, 57448), (668, 31562), (734, 28724), (1336, 15781), (1468, 14362), (2936, 7181)]