21909958

素因数分解:

$2^1\times 7^2\times {\mathrm{179}}^1\times {\mathrm{1249}}^1$

素因数の和:1444

約数の個数: 24

約数和(自身を含む): 38475000

約数和(自身を除く): 16565042

約数列:

[1, 2, 7, 14, 49, 98, 179, 358, 1249, 1253, 2498, 2506, 8743, 8771, 17486, 17542, 61201, 122402, 223571, 447142, 1564997, 3129994, 10954979, 21909958]

約数ペア:

[(1, 21909958), (2, 10954979), (7, 3129994), (14, 1564997), (49, 447142), (98, 223571), (179, 122402), (358, 61201), (1249, 17542), (1253, 17486), (2498, 8771), (2506, 8743)]