21491246

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{2153}}^1$

素因数の和:2216

約数の個数: 32

約数和(自身を含む): 39702528

約数和(自身を除く): 18211282

約数列:

[1, 2, 7, 14, 23, 31, 46, 62, 161, 217, 322, 434, 713, 1426, 2153, 4306, 4991, 9982, 15071, 30142, 49519, 66743, 99038, 133486, 346633, 467201, 693266, 934402, 1535089, 3070178, 10745623, 21491246]

約数ペア:

[(1, 21491246), (2, 10745623), (7, 3070178), (14, 1535089), (23, 934402), (31, 693266), (46, 467201), (62, 346633), (161, 133486), (217, 99038), (322, 66743), (434, 49519), (713, 30142), (1426, 15071), (2153, 9982), (4306, 4991)]