19925072

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{65543}}^1$

素因数の和:65570

約数の個数: 20

約数和(自身を含む): 40637280

約数和(自身を除く): 20712208

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 65543, 131086, 262172, 524344, 1048688, 1245317, 2490634, 4981268, 9962536, 19925072]

約数ペア:

[(1, 19925072), (2, 9962536), (4, 4981268), (8, 2490634), (16, 1245317), (19, 1048688), (38, 524344), (76, 262172), (152, 131086), (304, 65543)]