19717072

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{409}}^1$

素因数の和:571

約数の個数: 40

約数和(自身を含む): 40265280

約数和(自身を除く): 20548208

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 131, 184, 262, 368, 409, 524, 818, 1048, 1636, 2096, 3013, 3272, 6026, 6544, 9407, 12052, 18814, 24104, 37628, 48208, 53579, 75256, 107158, 150512, 214316, 428632, 857264, 1232317, 2464634, 4929268, 9858536, 19717072]

約数ペア:

[(1, 19717072), (2, 9858536), (4, 4929268), (8, 2464634), (16, 1232317), (23, 857264), (46, 428632), (92, 214316), (131, 150512), (184, 107158), (262, 75256), (368, 53579), (409, 48208), (524, 37628), (818, 24104), (1048, 18814), (1636, 12052), (2096, 9407), (3013, 6544), (3272, 6026)]